Roller shutter and manual-automatic switching device thereof

Abstract

The invention discloses a manual and automatic switching device for a roller shutter. The manual and automatic switching device comprises a fixed support, a brake disc and a fixed chassis which can be sequentially assembled and connected. A first motor shaft sliding hole, a first limiting piece, a second limiting piece, an upper clamping shaft rod and a lower clamping shaft rod are arranged on the brake disc, the upper clamping shaft rod is rotatably connected to the first limiting piece, the lower clamping shaft rod is rotatably connected to the second limiting piece, and the first limiting piece and the second limiting piece are located on the same side of the first motor shaft sliding hole; wherein the upper clamping shaft rod is provided with a first motor shaft braking surface, and the lower clamping shaft rod is provided with a second motor shaft braking surface matched with the first motor shaft braking surface in position. The invention further discloses the roller shutter. According to the roller shutter and the manual and automatic switching device thereof, the roller shutter can be quickly operated to be switched between the automatic mode and the manual mode; the structure is simple, cost is easy to control, and safety and reliability are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of rolling blinds, and in particular to a rolling blind and a manual-automatic switching device thereof. Background Art

[0002] In the prior art, there are manual and automatic roller blinds, but few models are both manual and automatic. At the same time, existing switchable roller blinds all use high-cost components such as clutches, which have high manufacturing costs and complex structures, resulting in low stability. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a rolling shutter and a manual-automatic switching device thereof, which can quickly operate the rolling shutter to switch between automatic mode and manual mode; the structure is simple, the cost is easy to control, and it is safe and reliable.

[0004] In order to solve the above technical problems, the present invention provides a manual-automatic switching device for rolling curtains, comprising: a fixed bracket, a brake disc and a fixed chassis which can be assembled in sequence; the brake disc is provided with a first motor shaft sliding hole, a first limit piece, a second limit piece, an upper clamping shaft rod and a lower clamping shaft rod, the upper clamping shaft rod is rotatably connected to the first limit piece, the lower clamping shaft rod is rotatably connected to the second limit piece, the first limit piece and the second limit piece are respectively located on the same side of the first motor shaft sliding hole; wherein: the upper clamping shaft rod is provided with a first motor shaft brake The upper clamping shaft is provided with a second motor shaft braking surface which is matched with the first motor shaft braking surface, and the first motor shaft braking surface and the second motor shaft braking surface are correspondingly arranged on the opposite sides of the first motor shaft sliding hole; the motor shaft is fixed through the fixed bracket, the first motor shaft sliding hole of the brake disc and the fixed chassis in sequence, wherein: the upper clamping shaft is moved relative to the first limit piece, and / or the lower clamping shaft is moved relative to the second limit piece, so that the first motor shaft braking surface and the second motor shaft braking surface are in close contact with the motor shaft, and the motor shaft is manually clamped and braked.

[0005] Among them, a spring support is provided on the lower clamping shaft, and a top spring is provided on the upper clamping shaft, wherein: one end of the top spring is connected to the spring support, the lower clamping shaft and the upper clamping shaft remain popped open and disengaged from the motor shaft, so that the manual automatic switching device of the roller shutter is in automatic mode.

[0006] Among them, a brake pin is provided on the upper clamping shaft, a first brake positioning hole is provided on the brake disc, and a second brake positioning hole is provided on the fixed chassis corresponding to the first brake positioning hole, wherein: the brake pin is inserted into the first brake positioning hole and the second brake positioning hole in sequence, so that the first motor shaft braking surface and the second motor shaft braking surface hold the motor shaft tightly to lock it.

[0007] The upper clamping shaft rod and the lower clamping shaft rod are moved to rotate the brake disc in conjunction with each other, so that the first brake positioning hole on the brake disc coincides with the second brake positioning hole of the fixed chassis.

[0008] Among them, a second motor shaft sliding hole is provided on the fixed bracket and its position is corresponding to and matched with the first motor shaft sliding hole; and a third motor shaft sliding hole is provided on the fixed chassis and its position is corresponding to and matched with the second motor shaft sliding hole.

[0009] The first limiting member and the second limiting member are respectively in the shape of a rod, and both are respectively arranged to be perpendicular to the brake disc, and the distance between the two limiting members is the diameter of a motor shaft.

[0010] Among them, the lower clamping shaft rotates up and down at a certain angle with the second limit piece as the axis, and the lower clamping shaft moves left and right along the second limit piece for a certain distance; the upper clamping shaft rotates up and down at a certain angle with the first limit piece as the axis, and the upper clamping shaft moves left and right along the first limit piece for a certain distance.

[0011] Wherein, a support column is arranged on the fixing bracket, and the fixing bracket is connected to the brake disc through the support column.

[0012] Wherein, a chassis fixing screw hole is arranged on the fixed chassis, and the manual automatic switching device for the rolling curtain is connected to the electric red cloth curtain device through the chassis fixing screw hole.

[0013] In order to solve the above technical problems, the present invention also discloses a rolling curtain of the above manual-automatic switching device for rolling curtains.

[0014] The implementation of the roller blind and the manual-automatic switching device thereof of the present invention has the following beneficial effects: the manual-automatic switching device for the roller blind comprises: a fixed bracket, a brake disc and a fixed chassis which can be assembled and connected in sequence; the brake disc is provided with a first motor shaft sliding hole, a first limit piece, a second limit piece, an upper clamping shaft rod and a lower clamping shaft rod, the upper clamping shaft rod is rotatably connected to the first limit piece, the lower clamping shaft rod is rotatably connected to the second limit piece, the first limit piece and the second limit piece are respectively located on the same side of the first motor shaft sliding hole; wherein: the upper clamping shaft rod is provided with a first motor shaft braking surface, the lower clamping shaft rod is provided with a first motor shaft braking surface, and the lower clamping shaft rod is provided with a first motor shaft braking surface. The second motor shaft braking surface is matched with the machine shaft braking surface, and the first motor shaft braking surface and the second motor shaft braking surface are correspondingly arranged on opposite sides of the first motor shaft sliding hole; the motor shaft is fixed through the fixed bracket, the first motor shaft sliding hole of the brake disc and the fixed chassis in sequence, wherein: the upper clamping shaft rod is moved relative to the first limit piece, and / or the lower clamping shaft rod is moved relative to the second limit piece, so that the first motor shaft braking surface and the second motor shaft braking surface are in close contact with the motor shaft, and the motor shaft is manually clamped and braked, so that the roller shutter can be quickly operated to switch between automatic mode and manual mode; the structure is simple, the cost is easy to control, and it is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the explosion structure of the manual-automatic switching device for rolling shutters according to an embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the embodiment of the present invention in which the upper and lower clamping shafts are moved to link the brake disc to rotate to a first angle.

[0018] Figure 3 It is a structural schematic diagram of the embodiment of the present invention in which the upper and lower clamping shafts are moved to link the brake disc to rotate to a second angle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-3 The figure shows the first embodiment of the manual-automatic switching device for roller blinds of the present invention.

[0021] The manual-automatic switching device for rolling curtains in this embodiment can be connected to the electric red curtain device T, and its main function is to realize the switching between manual control and automatic control of the rotation of the roller of the electric red curtain device T. Among them: automatic control means that the motor of the electric red curtain device T can drive the roller of the red curtain to rotate. Manual control means manually adjusting the unfolding and retraction of the red curtain of the electric red curtain device T.

[0022] The manual-automatic switching device for roller blinds in this embodiment includes: a fixed bracket 1, a brake disc 4 and a fixed chassis 17 which can be assembled and connected in sequence; the brake disc 4 is provided with a first motor shaft sliding hole 18, a first limit member 5, a second limit member 6, an upper clamping shaft 13 and a lower clamping shaft 12, the upper clamping shaft 13 is rotatably connected to the first limit member 5, the lower clamping shaft 12 is rotatably connected to the second limit member 6, and the first limit member 5 and the second limit member 6 are respectively located on the same side of the first motor shaft sliding hole 18.

[0023] Among them: the upper clamping shaft 13 is provided with a first motor shaft braking surface 19, the lower clamping shaft 12 is provided with a second motor shaft braking surface 7 whose position is adapted to the first motor shaft braking surface 19, and the first motor shaft braking surface 19 and the second motor shaft braking surface 7 are correspondingly arranged on opposite sides of the first motor shaft sliding hole 18.

[0024] The motor shaft is fixed in sequence through the fixed bracket 1, the first motor shaft sliding hole 18 of the brake disc 4 and the fixed chassis 17, wherein: the upper clamping shaft 13 is moved relative to the first limit piece 5, and / or the lower clamping shaft 12 is moved relative to the second limit piece 6, so that the first motor shaft braking surface 19 and the second motor shaft braking surface 7 are in close contact with the motor shaft, and the motor shaft is manually clamped and braked.

[0025] During implementation, the fixed bracket 1 is provided with a second motor shaft sliding hole 2 corresponding to the first motor shaft sliding hole 18; the fixed chassis 17 is provided with a third motor shaft sliding hole 15 corresponding to the second motor shaft sliding hole 2. The first stopper 5 and the second stopper 6 are rod-shaped, and both are perpendicular to the brake disc 4, and the distance between the two stoppers is the diameter of a motor shaft.

[0026] The lower clamping shaft 12 rotates up and down at a certain angle with the second stopper 6 as the axis, and moves left and right for a certain distance along the second stopper 6. The upper clamping shaft 13 rotates up and down at a certain angle with the first stopper 5 as the axis, and moves left and right for a certain distance along the first stopper 5.

[0027] Specifically, the top end of the lower clamping shaft 12 is inserted into the second limit member 6, and the lower clamping shaft 12 can rotate about 5° up and down around the second limit member 6, and can also move a small distance in the left and right directions.

[0028] The top end of the upper clamping shaft 13 is inserted into the first limiting member 5, and the upper clamping shaft 13 can rotate about 5° up and down around the first limiting member 5, and can also move a small distance in the left and right directions.

[0029] Furthermore, a spring support is provided on the lower clamping shaft 12, and a top spring 10 is provided on the upper clamping shaft 13, wherein: one end of the top spring 10 is connected to the spring support, and the lower clamping shaft 12 and the upper clamping shaft 13 remain popped open and disengaged from the motor shaft, so that the manual automatic switching device of the roller blind is in automatic mode.

[0030] When the upper clamping shaft 13 and the lower clamping shaft 12 are close to each other, the top spring 10 is compressed, and the first motor brake surface 19 and the second motor shaft brake surface 7 are closely fitted with the motor shaft, that is, the motor shaft is braked. After the motor shaft is locked to rotate, when the motor drive plate drives the motor to rotate, it will cause the motor to rotate. This drives the reel of the fixed motor to rotate, thereby controlling the unfolding or retraction of the red curtain.

[0031] Furthermore, a brake pin 11 is provided on the upper clamping shaft 13, a first brake positioning hole 8 is provided on the brake disc 4, and a second brake positioning hole 14 is provided on the fixed chassis 17, the position of which corresponds to the first brake positioning hole 8, wherein: the brake pin 11 is sequentially inserted into the first brake positioning hole 8 and the second brake positioning hole 14, so that the first motor shaft braking surface 19 and the second motor shaft braking surface 7 hold the motor shaft tightly to lock it.

[0032] During implementation, the combination of the upper clamping shaft 13 and the lower clamping shaft 12 is moved to completely pull the brake pin 11 out of the first brake positioning hole 8 and the second brake positioning hole 14. At this time, the upper clamping shaft 13 and the lower clamping shaft 12 are loosened. Due to the action of the top spring 10, the upper clamping shaft 13 and the lower clamping shaft 12 will remain apart, so that the motor shaft can rotate freely. At this time, the red curtain can be pulled out normally by hand.

[0033] It can be understood that when the upper clamping shaft 13 is moved in conjunction with the lower clamping shaft 12 , the brake disc 4 rotates so that the first brake positioning hole 8 on the brake disc coincides with the second brake positioning hole 14 of the fixed chassis 17 .

[0034] When the manual automatic switching device for rolling curtains in this embodiment is specifically assembled, a support column 3 is provided on the fixed bracket 1, and the fixed bracket 1 is connected to the brake disc 4 through the support column 3. A chassis fixing screw hole 16 is provided on the fixed chassis 17, and the manual automatic switching device for rolling curtains is connected to the electric red cloth curtain device through the chassis fixing screw hole 16.

[0035] In the specific implementation of the manual-automatic switching device for rolling blinds in this embodiment, when the motor drives the rolling shaft to rotate in the automatic mode: The upper clamping shaft 13 and the lower clamping shaft 12 are close to each other, so that the supporting spring 10 is compressed. The first motor brake surface 19 and the second motor shaft brake surface 7 are in close contact with the motor shaft, realizing the holding brake of the motor shaft. Then, the upper clamping shaft 13 and the lower clamping shaft 12 rotate together to drive the brake disc to rotate, and when the first brake positioning hole 8 and the second brake positioning hole 14 overlap, the combination of the upper clamping shaft 13 and the lower clamping shaft 12 is moved, so that the brake pin 11 is inserted into the first brake positioning hole 8 and the second brake positioning hole 14, thereby realizing the locking of the motor shaft, so that the motor shaft cannot rotate freely.

[0036] When the manual operation mode is performed: the combination of the upper clamping shaft 13 and the lower clamping shaft 12 is moved, so that the brake pin 11 is completely pulled out from the first brake positioning hole 8 and the second brake positioning hole 14. At this time, the upper clamping shaft 13 and the lower clamping shaft 12 are released. Due to the effect of the top spring 10, the upper clamping shaft 13 and the lower clamping shaft 12 will remain open, so that the motor shaft can rotate freely. At this time, the red cloth curtain can be pulled out normally by hand.

[0037] The upper clamping shaft 13 and the lower clamping shaft 12 remain in the state of being ejected, and then the upper clamping shaft 13 and the lower clamping shaft 12 are brought closer. At this time, the motor shaft can be locked, and the upper clamping shaft 13 and the lower clamping shaft 12 are rotated, and the motor shaft will rotate synchronously. When the upper clamping shaft 13 and the lower clamping shaft 12 are rotated counterclockwise to a maximum of 120°, they can no longer rotate forward. At this time, the upper clamping shaft 13 and the lower clamping shaft 12 can be loosened, and the upper clamping shaft 13 and the lower clamping shaft 12 can be rotated in the loosened state to a fixed position. Repeat the above steps to continuously rotate the reel counterclockwise.

[0038] Control the reel to rotate clockwise: Keep the upper clamping shaft 13 and the lower clamping shaft 12 in the state of being ejected, and rotate them so that the upper clamping shaft 13 and the lower clamping shaft 12 are close to each other. At this time, the motor shaft can be locked, and the upper clamping shaft 13 and the lower clamping shaft 12 can be rotated synchronously. When the upper clamping shaft 13 and the lower clamping shaft 12 are rotated clockwise to a maximum of 120°, they can no longer rotate forward. Combine the upper clamping shaft 13 and the lower clamping shaft 12 in the loose state to a fixed position. Repeat the above steps to continuously rotate the reel clockwise.

[0039] An embodiment of the present invention also discloses a rolling curtain having the above-mentioned manual-automatic switching device for rolling curtains. The rolling curtain can be a rolling curtain of an electric red cloth curtain device T. The specific implementation of the rolling curtain is the same as the implementation of the above-mentioned manual-automatic switching device for rolling curtains, and will not be repeated here.

[0040] A rolling curtain and a manual-automatic switching device thereof implementing the present invention have the following beneficial effects: the manual-automatic switching device for the rolling curtain comprises: a fixed bracket, a brake disc and a fixed chassis which can be sequentially assembled and connected; the brake disc is provided with a first motor shaft sliding hole, a first limit piece, a second limit piece, an upper clamping shaft rod and a lower clamping shaft rod, the upper clamping shaft rod is rotatably connected to the first limit piece, the lower clamping shaft rod is rotatably connected to the second limit piece, the first limit piece and the second limit piece are respectively located on the same side of the first motor shaft sliding hole; wherein: the upper clamping shaft rod is provided with a first motor shaft braking surface, the lower clamping shaft rod is provided with a first motor shaft braking surface, and the lower clamping shaft rod is provided with a first motor shaft braking surface. The second motor shaft braking surface is matched with the motor shaft braking surface, and the first motor shaft braking surface and the second motor shaft braking surface are correspondingly arranged on opposite sides of the first motor shaft sliding hole; the motor shaft is fixed through the fixed bracket, the first motor shaft sliding hole of the brake disc and the fixed chassis in sequence, wherein: the upper clamping shaft rod is moved relative to the first limit piece, and / or the lower clamping shaft rod is moved relative to the second limit piece, so that the first motor shaft braking surface and the second motor shaft braking surface are in close contact with the motor shaft, and the motor shaft is manually clamped and braked, so that the roller shutter can be quickly operated to switch between automatic mode and manual mode; the structure is simple, the cost is easy to control, and it is safe and reliable.

Claims

1. A manual automatic switching device for rolling curtains, characterized in that: include: The connected fixing bracket, brake disc and fixing chassis can be assembled in sequence; The brake disc is provided with a first motor shaft sliding hole, a first stopper, a second stopper, an upper clamping shaft and a lower clamping shaft, the upper clamping shaft is rotatably connected to the first stopper, the lower clamping shaft is rotatably connected to the second stopper, and the first stopper and the second stopper are respectively located on the same side of the first motor shaft sliding hole; Wherein: the upper clamping shaft is provided with a first motor shaft braking surface, the lower clamping shaft is provided with a second motor shaft braking surface whose position matches the first motor shaft braking surface, and the first motor shaft braking surface and the second motor shaft braking surface are correspondingly arranged on opposite sides of the first motor shaft sliding hole; The motor shaft passes through the fixing bracket, the first motor shaft sliding hole of the brake disc and the fixing chassis in sequence for fixing, wherein: Move the upper clamping shaft relative to the first limit piece, and / or the lower clamping shaft relative to the second limit piece, so that the first motor shaft braking surface and the second motor shaft braking surface are in close contact with the motor shaft, and manually clamp and brake the motor shaft.

2. The manual automatic switching device for roller blinds according to claim 1, characterized in that: A spring support is provided on the lower clamping shaft, and a resisting spring is provided on the upper clamping shaft, wherein: one end of the resisting spring is connected to the spring support, and the lower clamping shaft and the upper clamping shaft remain popped apart and disengaged from the motor shaft, so that the manual-automatic switching device of the roller blind is in automatic mode.

3. The manual automatic switching device for roller blinds according to claim 1, characterized in that: The upper clamping shaft is provided with a brake pin, the brake disc is provided with a first brake positioning hole, and the fixed chassis is provided with a second brake positioning hole corresponding to the first brake positioning hole, wherein: The brake pin is inserted into the first brake positioning hole and the second brake positioning hole in sequence, so that the first motor shaft brake surface and the second motor shaft brake surface hold the motor shaft tightly to lock it.

4. The manual automatic switching device for roller blinds according to claim 3, characterized in that: The upper clamping shaft rod and the lower clamping shaft rod are moved to rotate the brake disc in conjunction with each other, so that the first brake positioning hole on the brake disc coincides with the second brake positioning hole of the fixed chassis.

5. The manual automatic switching device for roller blinds according to claim 1, characterized in that: The fixed bracket is provided with a second motor shaft sliding hole whose position corresponds to and matches the first motor shaft sliding hole; the fixed chassis is provided with a third motor shaft sliding hole whose position corresponds to and matches the second motor shaft sliding hole.

6. The manual automatic switching device for roller blinds according to claim 1, characterized in that: The first limiting member and the second limiting member are respectively in the shape of a rod, and both are respectively arranged to be perpendicular to the brake disc, and the distance between the two limiting members is the diameter of a motor shaft.

7. The manual automatic switching device for roller blinds according to claim 1, characterized in that: The lower clamping shaft rod rotates up and down at a certain angle with the second limiting member as the axis, and the lower clamping shaft rod moves left and right along the second limiting member for a certain distance; The upper clamping shaft rod rotates up and down at a certain angle with the first limiting member as an axis, and the upper clamping shaft rod moves left and right at a certain distance along the first limiting member.

8. The manual-automatic switching device for roller blinds according to claim 1, characterized in that: The fixing bracket is provided with a supporting column, and the fixing bracket is connected to the brake disc through the supporting column.

9. The manual-automatic switching device for roller blinds according to claim 1, characterized in that: The fixed chassis is provided with chassis fixing screw holes, and the manual automatic switching device for the rolling curtain is connected to the electric red cloth curtain device through the chassis fixing screw holes.

10. A rolling blind, characterized in that: The rolling blind comprises a manual-automatic switching device for the rolling blind as described in any one of claims 1-9.

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