Electric trackless clutching machine for screen door

Abstract

The present application relates to the technical field of screen door, and particularly relates to an electric trackless clutching machine of a screen door, which comprises a machine box, a driving part and a clutching part, wherein the machine box is used for accommodating a motor; the driving part is connected with the motor in transmission and can rotate under the driving of the motor; and the clutching part is arranged below the machine box in intervals and connected with the driving part, and the clutching part and the driving part are matched or separated through the forward and reverse rotation of the driving part, so as to solve the problem that the motor-driven screen door control device in the prior art cannot simultaneously solve the poor opening and closing accuracy and poor self-adaptability in screen door control.

Description

Technical Field

[0001] This invention relates to the field of screen door technology, and specifically to an electric trackless clutch for screen doors. Background Technology

[0002] A screen door is a type of door with a screen mesh, providing good ventilation. It is often installed between the living room and balcony in homes to ensure good airflow. Current screen door trajectory control uses controllers at each joint to output driving torque, controlling the position and precision of each joint. This allows the screen door to accurately follow a given trajectory, achieving the desired operating path.

[0003] For a long time, traditional DC motors have been used as the driving servo components for the clutch mechanism of window screens. However, due to problems such as mechanical wear, arc erosion and oxidation of the commutator, traditional DC motors have commutation "dead points", contact resistance and wear failure when used as servo drives for the clutch mechanism of window screens. This makes it impossible for the clutch mechanism to perform the clutch action, and the handle cannot unlock the lock body.

[0004] In summary, existing motor-driven screen door control devices cannot simultaneously solve the problems of poor switching accuracy and poor adaptability in screen door control. Therefore, an electric trackless clutch mechanism for screen doors is needed. Summary of the Invention

[0005] The purpose of this invention is to provide an electric trackless clutch for screen doors, which solves the problems of poor switching accuracy and poor adaptability in the control of screen doors by existing motor-driven screen door control devices.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An electric trackless clutch for a screen door includes:

[0008] A housing for accommodating a motor;

[0009] A drive unit, which is connected to the motor and can rotate under the drive of the motor; and

[0010] The clutch is spaced apart below the housing and connected to the drive unit. The clutch and the drive unit are engaged or disengaged by the forward and reverse rotation of the drive unit.

[0011] A further technical solution is that the drive unit includes a vertically arranged rotating shaft, the output end of the motor is provided with a worm gear with turbine teeth, the rotating shaft is provided with a helical gear, and the helical gear and the worm gear are meshed and connected.

[0012] A further technical solution is that the clutch includes a synchronous pulley and steel balls. The bottom of the rotating shaft is provided with a connecting shaft, and the lower end of the connecting shaft is provided with a positioning bearing. The middle of the synchronous pulley is provided with a vertical through hole. The lower end of the connecting shaft passes through the through hole and is connected to the positioning bearing. The inner side of the synchronous pulley is provided with an inclined first guide groove. The connecting shaft is provided with a paddle that drives the steel balls to rotate. The positioning bearing is located below the first guide groove. A second guide groove is formed between the paddle and the positioning bearing. The steel balls are located in the guide groove.

[0013] When the rotating shaft rotates clockwise, the paddle drives the steel ball to disengage from the second guide groove and move to the first guide groove until the synchronous wheel and the connecting shaft both come into contact with the steel ball, so that the connecting shaft and the synchronous wheel are linked.

[0014] When the rotating shaft reverses, the paddle drives the steel ball to disengage from the first guide groove and fall into the second guide groove, so that the synchronous pulley and the connecting shaft are disengaged.

[0015] A further technical solution is that the inner side of the synchronous pulley is provided with two first guide grooves, and the two first guide grooves are arranged symmetrically.

[0016] A further technical solution is that the slope of the first guide groove is 2-30°.

[0017] A further technical solution is that the lower end of the positioning bearing is provided with a support frame, the support frame is connected to the housing by bolts, the middle part of the support frame and the lower end of the housing are both provided with support bearings, and the upper and lower ends of the synchronous pulley are respectively connected to the two support bearings.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The motor drives the drive unit to rotate, which in turn drives the clutch to rotate. The clutch engages or disengages with the drive unit according to the forward and reverse rotation of the drive unit, thus ensuring the normal operation of the entire clutch mechanism. The entire device has a reasonable structural design and can control the switching accuracy of the motor, significantly improving the adaptability of the entire device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an electric trackless clutch for a screen door according to the present invention.

[0021] Figure 2 This is a schematic diagram of the connection between the rotating shaft and the motor in this invention.

[0022] Figure 3 This is a schematic diagram of the connection between the rotating shaft and the synchronous wheel in this invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] Example:

[0025] Figure 1-3 This invention illustrates a preferred embodiment of an electric trackless clutch for a screen door. In this embodiment, the electric trackless clutch for a screen door specifically includes a housing 1, which is used to house a motor 2.

[0026] The drive unit is connected to the motor 2 and can rotate under the drive of the motor 2; and

[0027] The clutch is spaced apart below the housing 1 and is connected to the drive unit. The clutch and the drive unit are engaged or disengaged by the forward and reverse rotation of the drive unit.

[0028] In this invention, the motor 2 drives the drive unit to rotate, and the drive unit drives the clutch to rotate. The clutch engages or disengages with the drive unit according to the forward and reverse rotation of the drive unit, thereby ensuring the normal operation of the entire clutch mechanism. The entire device has a reasonable structural design and can control the switching accuracy of the motor 2, significantly improving the adaptability of the entire device.

[0029] The drive unit includes a vertically arranged rotating shaft 3. The output end of the motor 2 is provided with a worm gear 4 with worm teeth. The rotating shaft 3 is provided with a helical gear. The helical gear and the worm gear 4 are meshed and connected. During the rotation of the motor 2, the worm gear 4 is driven to rotate. The worm teeth on the worm gear 4 are connected to the helical gear on the vertically arranged rotating shaft 3 through meshing, so that the motor 2 drives the rotating shaft 3 to rotate.

[0030] The clutch includes a synchronous pulley 5 and a steel ball 6. The bottom of the rotating shaft 3 is provided with a connecting shaft 7. The lower end of the connecting shaft 7 is provided with a positioning bearing 8. The middle of the synchronous pulley 5 is provided with a vertical through hole. The lower end of the connecting shaft 7 passes through the through hole and is connected to the positioning bearing 8. The inner side of the synchronous pulley 5 is provided with an inclined first guide groove 9. The connecting shaft 7 is provided with a paddle 10 that drives the steel ball 6 to rotate. The positioning bearing 8 is located below the first guide groove 9. A second guide groove 11 is formed between the paddle 10 and the positioning bearing 8. The steel ball 6 is located in the through hole.

[0031] When the rotating shaft 3 rotates clockwise, the paddle 10 drives the steel ball 6 to disengage from the second guide groove 11 and move to the first guide groove 9 until the synchronous wheel 5 and the connecting shaft 7 both come into contact with the steel ball 6, so that the connecting shaft 7 and the synchronous wheel 5 are linked together.

[0032] When the rotating shaft 3 reverses, the paddle 10 drives the steel ball 6 to disengage from the first guide groove 9 and fall into the second guide groove 11, so that the synchronous wheel 5 and the connecting shaft 7 are disengaged.

[0033] During installation, the lower end of the rotating shaft 3 is positioned inside the through hole to prevent the steel ball 6 from dislodging from the through hole.

[0034] When the rotating shaft 3 rotates forward, the paddle 10 drives the steel ball 6 to disengage from the second guide groove 11 and move to the first guide groove 9 until the synchronous wheel 5 and the connecting shaft 7 both come into contact with the steel ball 6. At this time, the synchronous wheel 5, the connecting shaft 7 and the steel ball 6 remain relatively stationary, thereby realizing the linkage between the connecting shaft 7 and the synchronous wheel 5.

[0035] When the rotating shaft 3 reverses, the steel ball 6 slides along the direction of the first guide groove 9 until it falls into the second guide groove 11. At this time, the connecting shaft 7 and the synchronous wheel 5 disengage, ensuring that the clutch works normally.

[0036] The slope of the first guide groove 9 is 2-30°, which facilitates the rotation of the shaft 3 and drives the steel ball 6 to slide in the first guide groove 9. Specifically, by setting the slope of the first guide groove 9, it is convenient to lock the steel ball 6 in the first guide groove 9 by rotating the shaft 3 in both directions, so that the connecting shaft 7 and the synchronous wheel 5 can be linked together, or the steel ball 6 can be released from the first guide groove 9 and fall into the second guide groove 11, so that the connecting shaft 7 and the synchronous wheel 5 can be disengaged.

[0037] The lower end of the positioning bearing 8 is provided with a support frame 12, which is connected to the housing 1 by bolts. The middle part of the support frame 12 and the lower end of the housing 1 are both provided with support bearings 13. The upper and lower ends of the synchronous wheel 5 are respectively connected to the two support bearings 13. The two support bearings 13 are used to limit the position of the synchronous wheel 5, and the support frame 12 provides support for the synchronous wheel 5.

[0038] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. An electric trackless clutch for a screen door, characterized in that, include: A housing (1) for housing a motor (2); The drive unit is connected to the motor (2) for transmission and can rotate under the drive of the motor (2); as well as The clutch is spaced apart below the housing (1) and connected to the drive unit. The clutch and the drive unit are engaged or disengaged by the forward and reverse rotation of the drive unit. The drive unit includes a vertically arranged rotating shaft (3), the output end of the motor (2) is provided with a worm (4) with a turbine tooth, the rotating shaft (3) is provided with a helical gear, and the helical gear and the worm (4) are meshed and connected. The clutch includes a synchronous pulley (5) and a steel ball (6). The bottom of the rotating shaft (3) is provided with a connecting shaft (7). The lower end of the connecting shaft (7) is provided with a positioning bearing (8). The middle of the synchronous pulley (5) is provided with a through hole. The lower end of the connecting shaft (7) passes through the through hole and is connected to the positioning bearing (8). The inner side of the synchronous pulley (5) is provided with an inclined first guide groove (9). The connecting shaft (7) is provided with a paddle (10) that drives the steel ball (6) to rotate. The positioning bearing (8) is located below the first guide groove (9). A second guide groove (11) is formed between the paddle (10) and the positioning bearing (8). The steel ball (6) is located in the through hole. When the rotating shaft (3) rotates forward, the paddle (10) drives the steel ball (6) to disengage from the second guide groove (11) and move to the first guide groove (9) until the synchronous wheel (5) and the connecting shaft (7) both come into contact with the steel ball (6) so that the connecting shaft (7) and the synchronous wheel (5) are linked. When the rotating shaft (3) reverses, the paddle (10) drives the steel ball (6) to disengage from the first guide groove (9) and fall into the second guide groove (11), so that the synchronous wheel (5) and the connecting shaft (7) are disengaged.

2. The electric trackless clutch for a screen door according to claim 1, characterized in that: The inner side of the synchronous pulley (5) is provided with two first guide grooves (9), and the two first guide grooves (9) are arranged symmetrically.

3. The electric trackless clutch for a screen door according to claim 1 or 2, characterized in that: The slope of the first guide groove (9) is 2-30°.

4. The electric trackless clutch for a screen door according to claim 1, characterized in that: The lower end of the positioning bearing (8) is provided with a support frame (12), which is connected to the housing (1) by bolts. The middle part of the support frame (12) and the lower end of the housing (1) are provided with support bearings (13). The upper and lower ends of the synchronous pulley (5) are respectively connected to the two support bearings (13).

Images