Electric curtain starting and stopping device

Abstract

The utility model relates to the technical field of curtains, and discloses an electric curtain starting and stopping device which comprises a driving box body, a side edge closing cover is arranged on the side edge of the driving box body, two rotating penetrating holes are symmetrically formed in the side edge closing cover, a driving motor is arranged at the bottom of the driving box body, and the driving motor is connected with the driving box body. A driving shaft of the driving motor is fixedly connected with the bottom end of the transmission connecting column, the outer side of the transmission chain wheel is sleeved with a driving chain in a meshed mode, and an electric start-stop lubricating assembly is arranged on the top of the driving chain. Wherein a proper amount of lubricating liquid is injected into a lubricating liquid storage tank in the electric start-stop lubricating assembly in advance, so that the transmission of the electric start-stop lubricating assembly is effectively lubricated, the transmission friction between a transmission chain wheel and a driving chain is reduced, the problem of slow start or inaccurate stop position caused by long-time abrasion of the curtain is effectively avoided, and the electric start-stop lubricating assembly is more convenient for a user to use.

Description

Technical Field

[0001] This utility model relates to the field of curtain technology, specifically to an electric curtain start / stop device. Background Technology

[0002] The basic structure of an electric curtain includes a track installed on the wall, the curtain fabric hanging on the track, and a transmission box on the track. The transmission box enables a transmission connection between a detachable motor and the curtain fabric, thereby driving the curtain fabric to move along the guide rail on the track by rotating the motor's output shaft.

[0003] A search revealed that Chinese Patent Publication No. CN 220174895 U relates to the field of electric curtains, solving the technical problem that existing electric curtain drive devices require the installation of two electric curtain systems for double-opening curtains. This utility model proposes an electric curtain drive device, including a housing, a motor, a reduction mechanism, and a drive unit. The reduction mechanism is housed within the housing, and the motor transmits power to the drive unit via the reduction mechanism. The drive unit is used to drive the opening and closing of the curtains. The drive unit includes a transmission shaft and a pair of output gears. The transmission shaft is perpendicular to the direction of curtain movement, passes through the housing, and extends out of the housing at both ends. The pair of output gears are fixed to both ends of the transmission shaft. By setting up the transmission shaft and the paired output gears, the motor can drive the curtains on both sides to move when working, thus realizing the opening and closing of double-opening curtains with a single electric curtain drive device.

[0004] The start-stop device in the aforementioned patent still has some shortcomings. In actual use, most existing electric curtain start-stop devices send wireless signals through a remote control or mobile APP to control the motor drive board to realize the forward and reverse rotation and start-stop of the motor. However, during long-term use, the drive components of the motor are prone to wear due to the meshing of gears, which can affect the opening and closing of the curtain, resulting in problems such as slow start-up and inaccurate stopping position, which is inconvenient for users. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an electric curtain start-stop device. This solves the problem that most existing electric curtain start-stop devices rely on remote controls or mobile apps to send wireless signals to control the motor drive board for forward and reverse rotation and start-stop. However, over time, the motor drive components are prone to wear due to gear meshing, which can affect the opening and closing of the curtains, resulting in slow start-up and inaccurate stopping positions, thus inconveniencing the user.

[0006] This utility model provides the following technical solution: an electric curtain start / stop device, including a drive housing, a side closing cover on the side of the drive housing, two symmetrical rotating through holes on the side closing cover, a transmission sprocket inside the drive housing, a transmission connecting column in the middle of the transmission sprocket, the top end of the transmission connecting column being rotatably connected to the inner wall of the drive housing, the bottom end of the transmission connecting column rotatably penetrating the bottom of the drive housing, a drive motor at the bottom of the drive housing, the drive shaft of the drive motor being fixedly connected to the bottom end of the transmission connecting column, a drive chain meshing with the outer side of the transmission sprocket, the end of the drive chain penetrating the rotating through holes, an electric start / stop lubrication assembly at the top of the drive chain, and a limit rail on the side of the drive housing, the limit rail being sleeved on the outer side of the drive chain;

[0007] The electric start-stop lubrication assembly includes a lubricant storage tank located at the top of the drive housing. The top of the lubricant storage tank has an inlet, and a connecting cover is provided on the inlet. A lubricant buffer tank is located on the top wall of the drive housing. The lubricant storage tank and the lubricant buffer tank are connected by several inlet pipes. Three drain pipes are evenly distributed at the bottom of each inlet pipe. A drip-blocking plate is inserted into the side of the lubricant buffer tank. A push-pull channel is opened on the side of the drive housing. The side of the drip-blocking plate extends into the push-pull channel. Two push-pull connecting rods are symmetrically arranged on the side of the drip-blocking plate. The ends of the push-pull connecting rods protrude through the push-pull channel. The ends of the two push-pull channels are connected by an outer connecting plate. A return spring is fitted on each push-pull channel. One end of the return spring is connected to the outside of the drive housing, and the other end is connected to the body of the push-pull connecting rod. A bottom wall baffle is provided on the side of the bottom of the transmission sprocket.

[0008] Preferred technical solution 1: A residual liquid outlet is provided on the side of the bottom of the drive box, and a residual liquid collection chamber is provided at the bottom of the residual liquid outlet.

[0009] Preferred technical solution 2: The bottom side of the residual liquid collection chamber is connected to a liquid outlet pipe, and a valve is installed on the liquid outlet pipe.

[0010] Preferred technical solution three: The opening at the bottom of the drain pipe is located directly above the point where the transmission sprocket and the drive chain mesh.

[0011] This design allows the lubricating fluid dripping through the drain pipe to more effectively reach the meshing point between the transmission sprocket and the drive chain.

[0012] Preferred technical solution four: The bottom wall baffle is located on the side of the bottom of the transmission sprocket and is fixedly connected to the bottom of the drive housing.

[0013] This design allows the lubricating fluid dripping to the bottom to be blocked by the bottom wall baffle and enter the residual fluid outlet more quickly.

[0014] Preferred technical solution five: The top of the residual liquid collection chamber is provided with a liquid inlet channel, which is connected to the residual liquid outlet.

[0015] This solution allows excess lubricant that drips to the bottom of the drive housing to be collected in the residual fluid collection chamber via the residual fluid drain outlet.

[0016] Compared with the prior art, this utility model provides an electric curtain start / stop device, which has the following features:

[0017] Beneficial effects:

[0018] (1) This utility model has an electric start-stop lubrication assembly installed on the drive housing. The lubricant storage tank of the electric start-stop lubrication assembly is pre-filled with appropriate lubricant. The lubricant enters the lubricant buffer tank through the inlet pipe. The user can pull out the drip blocking plate inserted in the lubricant buffer tank, so that the lubricant in the lubricant buffer tank can drip through the drain pipe to the meshing point of the transmission sprocket and the drive chain, so that the transmission is effectively lubricated and the transmission friction between the transmission sprocket and the drive chain is reduced. This makes the curtain driven by the drive chain open and close more smoothly, effectively avoiding the problem of slow start or inaccurate stop position of the curtain due to long-term wear, and making it more convenient for the user. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 For the present utility model Figure 1 Enlarged view of the push-pull channel structure;

[0021] Figure 3 This is a schematic diagram of the internal cross-section of the structure of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of the electric start-stop lubrication assembly.

[0023] In the diagram: 1. Drive housing; 2. Side closing cover; 3. Rotating perforation; 4. Transmission sprocket; 5. Transmission connecting column; 6. Drive motor; 7. Drive chain; 8. Electric start / stop lubrication assembly; 9. Limiting slide rail;

[0024] 801. Lubricating fluid storage tank; 802. Inlet; 803. Connecting cover; 804. Lubricating fluid buffer tank; 805. Inlet pipe; 806. Drain pipe; 807. Drip barrier plate; 808. Push-pull channel; 809. Push-pull connecting rod; 810. Outer connecting plate; 811. Return spring; 812. Bottom wall baffle; 813. Residual liquid outlet; 814. Residual liquid collection chamber; 815. Outlet pipe; 816. Valve. Detailed Implementation

[0025] Please see Figure 1-4 ,

[0026] Example 1: An electric curtain start / stop device includes a drive housing 1, a side closing cover 2 on the side of the drive housing 1, two symmetrical rotating through holes 3 on the side closing cover 2, a transmission sprocket 4 inside the drive housing 1, a transmission connecting column 5 in the middle of the transmission sprocket 4, the top end of the transmission connecting column 5 being rotatably connected to the inner wall of the drive housing 1, the bottom end of the transmission connecting column 5 rotatably penetrating the bottom of the drive housing 1, a drive motor 6 at the bottom of the drive housing 1, the drive shaft of the drive motor 6 being fixedly connected to the bottom end of the transmission connecting column 5, a drive chain 7 meshing and sleeved on the outer side of the transmission sprocket 4, the end of the drive chain 7 penetrating the rotating through hole 3, an electric start / stop lubrication assembly 8 at the top of the drive chain 7, and a limit slide rail 9 on the side of the drive housing 1, the limit slide rail 9 being sleeved on the outer side of the drive chain 7.

[0027] The electric start-stop lubrication assembly 8 includes a lubricant storage tank 801 located at the top of the drive housing 1. The top of the lubricant storage tank 801 is provided with an inlet 802, and a connecting cover 803 is provided on the inlet 802. A lubricant buffer tank 804 is provided on the top wall of the drive housing 1. The lubricant storage tank 801 and the lubricant buffer tank 804 are connected by a number of inlet pipes 805. Three drain pipes 806 are evenly provided at the bottom of the inlet pipes 805. A dripping baffle plate 807 is inserted into the side of the lubricant buffer tank 804. A push-pull channel 808 is opened on the side of the drive housing 1. The side of the dripping baffle plate 807 extends into the push-pull channel 808. Two push-pull connecting rods 809 are symmetrically arranged on the side of the dripping baffle plate 807.

[0028] The end of the push-pull connecting rod 809 extends out of the push-pull channel 808. The ends of the two push-pull channels 808 are connected by an outer connecting plate 810. Each push-pull channel 808 is fitted with a return spring 811. One end of the return spring 811 is connected to the outside of the drive housing 1, and the other end of the return spring 811 is connected to the body of the push-pull connecting rod 809. A bottom wall baffle 812 is provided on the side of the bottom of the transmission sprocket 4. A residual liquid outlet 813 is opened on the side of the bottom of the drive housing 1. A residual liquid collection chamber 814 is provided at the bottom of the residual liquid outlet 813. A liquid outlet pipe 815 is connected to the side of the bottom of the residual liquid collection chamber 814. A valve 816 is provided on the liquid outlet pipe 815.

[0029] Example 2: The difference between this example and Example 1 is that the opening at the bottom of the drain pipe 806 is located directly above the point where the transmission sprocket 4 and the drive chain 7 mesh.

[0030] This allows the lubricant dripping through the drain pipe 806 to drip more effectively onto the meshing point between the transmission sprocket 4 and the drive chain 7.

[0031] Example 3: The difference between this example and Example 1 is that the bottom wall baffle 812 is located on the side of the bottom of the transmission sprocket 4 and is fixedly connected to the bottom of the drive housing 1.

[0032] This allows the lubricating fluid dripping to the bottom to be blocked by the bottom wall baffle 812 and enter the residual liquid outlet 813 more quickly.

[0033] Example 4: The difference between this example and Example 1 is that the top of the residual liquid collection chamber 814 is provided with a liquid inlet channel, which is connected to the residual liquid outlet 813.

[0034] This allows excess lubricant that drips to the bottom of the drive housing 1 to be collected in the residual liquid collection chamber 814 via the residual liquid discharge port 813.

[0035] In this embodiment, most existing electric curtain start-stop devices use a remote control or mobile app to send wireless signals to control the motor drive board to achieve forward and reverse rotation and start-stop of the motor. However, during long-term use, the drive components of the motor are prone to wear due to the meshing of gears, which can affect the opening and closing of the curtains, resulting in slow start-up and inaccurate stopping position, which is inconvenient for users.

[0036] In summary, in specific implementation, by providing an electric start-stop lubrication assembly 8 on the drive housing 1, when the drive motor 6 drives the transmission sprocket 4 to rotate through the drive transmission connecting column 5, and the transmission sprocket 4 meshes with the drive chain 7 to drive the drive chain 7 to rotate, in order to make the rotation of the drive chain 7 by the transmission sprocket 4 smoother and reduce wear, an electric start-stop lubrication assembly 8 is provided on the drive housing 1.

[0037] When the user needs to lubricate the meshing point between the transmission sprocket 4 and the drive chain 7, appropriate lubricant is first injected into the lubricant storage tank 801 of the electric start-stop lubrication assembly 8 through the inlet 802. The lubricant then enters the lubricant buffer tank 804 through the inlet pipe 805. The user can pull the outer connecting plate 810, which in turn drives the drip blocking plate 807 out of the bottom of the lubricant buffer tank 804 via the push-pull connecting rod 809. This prevents the drip blocking plate 807 from closing the top of the drain pipe 806. A return spring is also fitted on the push-pull connecting rod 809. 811 effectively drives the push-pull connecting rod 809 to return to its original position, allowing the lubricant in the lubricant buffer tank 804 to enter the drain pipe 806. The lubricant drips through the drain pipe 806 to the meshing point of the transmission sprocket 4 and the drive chain 7, thus ensuring effective lubrication when the transmission sprocket 4 and the drive chain 7 are engaged. This reduces transmission friction between the transmission sprocket 4 and the drive chain 7, making the curtain driven by the drive chain 7 open and close more smoothly. This effectively avoids the problem of slow start-up or inaccurate stopping position caused by long-term wear of the curtain, making it more convenient for users.

[0038] Furthermore, the start-up of the drive motor 6 can be effectively controlled by using a commercially available motor controller such as the AB Rockwell 150-F43NBD, so as to realize the electric start-up and stop of the curtain. Excess lubricant dripping onto the transmission sprocket 4 and drive chain 7 can be guided to the residual liquid collection chamber 814 through the residual liquid outlet 813 for centralized collection, thus avoiding the accumulation of lubricant at the bottom of the drive housing 1.

Claims

1. An electric curtain start / stop device, comprising a drive housing (1), characterized in that: The drive housing (1) has a side closing cover (2) on its side. Two rotating through holes (3) are symmetrically opened on the side closing cover (2). A transmission sprocket (4) is provided inside the drive housing (1). A transmission connecting column (5) is provided in the middle of the transmission sprocket (4). The top end of the transmission connecting column (5) is rotatably connected to the inner wall of the drive housing (1). The bottom end of the transmission connecting column (5) rotatably penetrates the bottom of the drive housing (1). A drive motor (6) is provided, the drive shaft of the drive motor (6) is fixedly connected to the bottom end of the transmission connecting column (5), a drive chain (7) is meshed on the outer side of the transmission sprocket (4), the end of the drive chain (7) passes through the rotating through hole (3), an electric start-stop lubrication assembly (8) is provided on the top of the drive chain (7), and a limit slide rail (9) is provided on the side of the drive housing (1), the limit slide rail (9) is sleeved on the outer side of the drive chain (7); The electric start-stop lubrication assembly (8) includes a lubricant storage tank (801) located at the top of the drive housing (1). The top of the lubricant storage tank (801) has an inlet (802), and the inlet (802) has a connecting cover (803). A lubricant buffer tank (804) is located on the top wall of the drive housing (1). The lubricant storage tank (801) and the lubricant buffer tank (804) are connected by several inlet pipes (805). Three drain pipes (806) are evenly distributed at the bottom of each inlet pipe (805). A drip-blocking plate (807) is inserted into the side of the lubricant buffer tank (804). A push-pull channel is provided on the side of the drive housing (1). (808) The side of the dripping barrier plate (807) extends into the push-pull channel (808). Two push-pull connecting rods (809) are symmetrically arranged on the side of the dripping barrier plate (807). The end of the push-pull connecting rod (809) passes through the push-pull channel (808). The ends of the two push-pull channels (808) are connected by an outer connecting plate (810). A return spring (811) is sleeved on each push-pull channel (808). One end of the return spring (811) is connected to the outside of the drive housing (1). The other end of the return spring (811) is connected to the rod body of the push-pull connecting rod (809). A bottom wall baffle (812) is provided on the side of the bottom of the transmission sprocket (4).

2. The electric curtain start / stop device according to claim 1, characterized in that: The bottom side of the drive housing (1) is provided with a residual liquid outlet (813), and a residual liquid collection chamber (814) is provided at the bottom of the residual liquid outlet (813).

3. The electric curtain start / stop device according to claim 2, characterized in that: The bottom side of the residual liquid collection chamber (814) is connected to a liquid outlet pipe (815), and a valve (816) is provided on the liquid outlet pipe (815).

4. The electric curtain start / stop device according to claim 3, characterized in that: The opening at the bottom of the drain pipe (806) is located directly above the point where the transmission sprocket (4) and the drive chain (7) mesh.

5. The electric curtain start / stop device according to claim 4, characterized in that: The bottom wall baffle (812) is located on the side of the bottom of the transmission sprocket (4) and is fixedly connected to the bottom of the drive housing (1).

6. The electric curtain start / stop device according to claim 5, characterized in that: The top of the residual liquid collection chamber (814) is provided with a liquid inlet channel, which is connected to the residual liquid outlet (813).

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