Overload protection device of electric door and window driving system

Abstract

The utility model discloses an overload protection device of an electric door and window driving system, which comprises a rack, a driving shaft and a power output shaft are rotatably arranged on the rack, and the driving shaft and the power output shaft are in transmission connection with an overload protection transmission mechanism. The overload protection transmission mechanism is arranged, so that the driving shaft can idle relative to the power output shaft when the door body or the window sash is blocked and cannot move or rotate normally, overload protection is achieved, and the problems that a motor is blocked and components are damaged are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an overload protection device of electric door and window drive system. BACKGROUND

[0002] The prior art discloses a same-direction linkage door in Chinese utility model patent document, publication number CN219316758U, including drive mechanism, upper door frame and fixed door body arranged on the lower side of upper door frame, first door body, second door body, first door body is located between fixed door body and second door body, first door body and second door body all are equipped with pulley mechanism and all are slidably connected to upper door frame through pulley mechanism, drive mechanism includes drive motor arranged in upper door frame, first driven wheel assembly, second driven wheel assembly, the output shaft of drive motor is connected with first driving wheel and the second driving wheel with the diameter greater than first driving wheel, first driving wheel and first driven wheel assembly are wound with first synchronous belt and are fixedly connected with the first linkage part of pulley mechanism arranged in first door body, second driving wheel and second driven wheel assembly are wound with second synchronous belt and are fixedly connected with the second linkage part of pulley mechanism arranged in second door body.

[0003] In the prior art, the output shaft of the drive motor is connected with the first driving wheel and the second driving wheel, and the synchronous belt wound by the driving wheel is connected with the door body by the linkage part. This series of connections are all rigid connections. The problem existing in the prior art is that when the door body is blocked by human or other factors, the motor still executes the program rotation, and the problems of motor locked-rotor damage or synchronous belt and synchronous wheel damage exist. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems existing in the prior art. To this end, the utility model provides an overload protection device of electric door and window drive system.

[0005] An overload protection device of electric door and window drive system designed for this purpose, comprising a rack, a drive shaft and a power output shaft are rotatably arranged on the rack, and an overload protection transmission mechanism is drivingly connected between the drive shaft and the power output shaft.

[0006] Preferably, the overload protection transmission mechanism comprises a torsion limiter mounted on the power output shaft, a second transmission wheel is mounted on the torsion limiter, a first transmission wheel is mounted on the drive shaft, and the first transmission wheel is drivingly connected with the second transmission wheel.

[0007] Preferably, the overload protection transmission mechanism comprises a torsion limiter mounted on the drive shaft, a first transmission wheel is mounted on the torsion limiter, a second transmission wheel is mounted on the power output shaft, and the first transmission wheel is drivingly connected with the second transmission wheel.

[0008] As preferred, the first transmission wheel and the second transmission wheel are connected by synchronous belt transmission.

[0009] As preferred, a driving element is installed on the frame, and the driving shaft is in transmission connection with the driving element.

[0010] As preferred, the diameter of the first transmission wheel is smaller than that of the second transmission wheel.

[0011] Compared with the prior art, the frame is provided with the driving shaft and the power output shaft, and the driving shaft and the power output shaft are in transmission connection with the overload protection transmission mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Figure 2 It is a plane structure schematic view of the utility model;

[0014] Figure 3 It is a cross-sectional structure schematic view of the utility model;

[0015] Figure 4 It is a cross-sectional structure schematic view of the utility model;

[0016] Figure 5 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 6 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 7 It is a three-dimensional structure schematic view of the utility model. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and examples.

[0020] Referring to Figures 1-7 An overload protection device of an electric door and window driving system, comprising a frame 10, the frame 10 is provided with a driving shaft 110 and a power output shaft 120, a driving element 20 is installed on the frame 10, the driving shaft 110 is in transmission connection with the driving element 20, and the driving shaft 110 and the power output shaft 120 are in transmission connection with an overload protection transmission mechanism 30.

[0021] The utility model discloses an operating principle, drive element 20 drives driving shaft 110 rotation, driving shaft 110 under the action of overload protection transmission mechanism 30, its drives power output shaft 120 rotation, and power output shaft 120 is used for driving door body to move or drive door body or sash to rotate to through power output wheel 40 connection synchronous belt linkage door body.

[0022] The utility model discloses setting up overload protection transmission mechanism, can realize when door body or sash is blocked and cannot normally move or rotate, driving shaft can idle relative power output shaft, to realize overload protection, avoid the problem of motor blockage and component damage.

[0023] Referring to Figure 3 , power output wheel 40 is installed on power output shaft 120. In the drive of door body movement, power output wheel 40 is equipped with synchronous belt, and door body is fixedly connected with synchronous belt through belt clamp, to realize when power output wheel 40 drives synchronous belt operation, drives door body movement.

[0024] Referring to Figure 4 , in the operation of central shaft door, eccentric shaft door and sash and other objects needing rotation to open, drive element 20 drives driving shaft 110 rotation, and driving shaft 110 under the action of overload protection transmission mechanism 30, its drives power output shaft 120 rotation, and power output shaft 120 directly drives door body or sash to rotate.

[0025] Referring to Figure 1 , the embodiment one of overload protection transmission mechanism 30 includes the torsion limiter 300 being installed on power output shaft 120, the second transmission wheel 320 is installed on torsion limiter 300, the first transmission wheel 310 is installed on driving shaft 110, and the first transmission wheel 310 is transmissionally connected with second transmission wheel 320. In this embodiment, torsion limiter 300 adopts the existing market product, and the effect of torsion limiter 300 is used for connecting second transmission wheel 320 and power output shaft 120, when the rotation torque of second transmission wheel 320 is less than the drive torque required by power output shaft 120, the torsion limiter 300 slips to realize the idle of second transmission wheel 320 relative to power output shaft 120 and realizes overload protection.

[0026] Referring to Figure 7, the second transmission wheel 320 is arranged on the power output shaft 120, and the first transmission wheel 310 is in transmission connection with the second transmission wheel 320.

[0027] In the utility model, the driving element 20 is a motor, and the motor shaft of the driving shaft 110.

[0028] In the utility model, the first transmission wheel 310 and the second transmission wheel 320 are synchronous wheels, and the two are in transmission connection through a synchronous belt 330.

[0029] In the utility model, the diameter of the first transmission wheel 310 is smaller than the diameter of the second transmission wheel 320.

[0030] Referring to Figures 5 to 7 Further comprising an angle sensor 50, and a magnetic head element 60 is arranged on the driving shaft 110 or the power output shaft 120 and cooperates with the angle sensor 50 for sensing.

[0031] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model.

Claims

1. An overload protection device for an electric door and window drive system, comprising a frame (10), a drive shaft (110) and a power output shaft (120) being rotatably arranged on the frame (10), characterized in that: The drive shaft (110) and the power output shaft (120) are drivingly connected with an overload protection transmission mechanism (30).

2. An overload protection device for an electric door or window drive system according to claim 1, characterized in that: The overload protection transmission mechanism (30) comprises a torsion limiter (300) mounted on the power output shaft (120), a second transmission wheel (320) is mounted on the torsion limiter (300), a first transmission wheel (310) is mounted on the drive shaft (110), and the first transmission wheel (310) is drivingly connected with the second transmission wheel (320).

3. An overload protection device for an electric door or window drive system according to claim 1, characterized in that: The overload protection transmission mechanism (30) comprises a torsion limiter (300) mounted on the drive shaft (110), a first transmission wheel (310) is mounted on the torsion limiter (300), a second transmission wheel (320) is mounted on the power output shaft (120), and the first transmission wheel (310) is drivingly connected with the second transmission wheel (320).

4. An overload protection device for an electric drive system for doors and windows according to claim 2 or 3, characterized in that: The first transmission wheel (310) and the second transmission wheel (320) are drivingly connected with a synchronous belt (330).

5. An overload protection device for an electric door or window drive system according to claim 1, characterized in that: A driving element (20) is mounted on the rack (10), and the drive shaft (110) is drivingly connected with the driving element (20).

6. An overload protection device for an electric drive system for doors and windows according to claim 2 or 3, characterized in that: The diameter of the first transmission wheel (310) is smaller than the diameter of the second transmission wheel (320).

7. An overload protection device for an electric door or window drive system according to claim 1, characterized in that: A power output wheel (40) is mounted on the power output shaft (120).

8. An overload protection device for an electric door or window drive system according to claim 1, characterized in that: An angle sensor (50) is further included, and a magnetic head element (60) is arranged on the drive shaft (110) or the power output shaft (120) to cooperate with the angle sensor (50) for sensing.

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