Magnetic type gear clutch structure and window opening machine

Abstract

The utility model discloses a magnetic type gear clutch structure and a window opening machine, relates to the technical field of electric doors and windows, and solves the problem that a window can freely move at will when the window opening machine with a clutch structure in the prior art is opened and does not operate. The magnetic attraction type gear clutch structure comprises a driving gear and an output gear, the axes of the driving gear and the output gear are parallel, the driving gear and the output gear are rotationally arranged on a supporting body, the driving gear is in meshing transmission with a transmission gear, and the transmission gear is connected with a magnetic attraction clutch structure and connected with a clutch gear through the magnetic attraction clutch structure. The transmission gear, the magnetic attraction clutch structure and the clutch gear are coaxially arranged, and the clutch gear is in meshing transmission with the output gear. Due to the existence of the magnetic attraction effect, when the external force applied to the output gear is small, rotation of the output gear is limited, and when the external force applied to the output gear is large, the force transmitted to the clutch gear is large, the magnetic attraction state of the magnetic attraction clutch structure is damaged, and the clutch gear is driven to rotate. The device is simple in structure and high in reliability, and the service life can be prolonged to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of electric doors and windows, in particular to a magnetic attraction type gear clutch structure and a window opener. Background Art

[0002] With the advancement of technology and the improvement of people's living standards, electric doors and windows have gradually become the standard configuration of modern homes and buildings due to their convenient and fast characteristics, especially for some public buildings that have fire protection requirements. Electric doors and windows have become an indispensable part. Electric doors and windows can not only be easily opened and closed by simple buttons or remote controls, but also through intelligent control, such as timer switches, induction switches, etc., to provide users with a more convenient experience.

[0003] However, most of the current manual-automatic electric doors and windows use a "non-obstruction two-way clutch", which can output torque to the output end normally at the motor end, but when the window is manually opened or closed, the clutch structure inside will disconnect the gears connected on both sides, so that the manual input force can only act on the clutch gear, and the force is not transmitted to the motor, affecting the internal structure and life of the motor. Although such a structure solves the problem of switching between manual and electric electric doors and windows, such a structure will show great disadvantages on windy days. Because there is no obstruction, the window can easily continue to open and close under the action of wind, which not only generates noise but also has a great impact on the life of the window.

[0004] For example, a Chinese patent with publication number CN213742775U discloses a lock box for an electric casement window, which includes a clutch, the clutch includes an input gear and an output gear, the output shaft of the motor is meshed with the input gear through an input transmission component, the output gear is meshed with the lock rod driving gear through an output transmission component, a round table is fixedly installed on the rotating shaft of the input gear, the output gear is movably sleeved outside the round table, the round table has a plurality of through holes running through both sides with the rotating shaft of the input gear as the center, and steel balls and compression springs are arranged in the through holes. By adding a clutch to the lock box, manual and electric control of the casement window can be switched freely.

[0005] However, the lock box of the above-mentioned electric casement window, although it is provided with a clutch to realize free switching between manual and electric control of the casement window, cannot realize the maintenance of any opening angle. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a magnetic gear clutch structure and a window opener, which solves the problem in the prior art that when the window is opened and the window opener with a clutch structure is not running, the window can move freely.

[0007] The technical solution of the utility model is implemented as follows: a magnetic gear clutch structure, including a driving gear and an output gear that are parallel to the axis and rotatably arranged on a support body respectively, the driving gear is meshed with the transmission gear for transmission, the transmission gear is connected to the magnetic clutch structure, and is connected to the clutch gear through the magnetic clutch structure, the transmission gear, the magnetic clutch structure, and the clutch gear are coaxially arranged, and the clutch gear is meshed with the output gear for transmission.

[0008] Preferably, the transmission gear is arranged on a transmission gear shaft, the transmission gear shaft is arranged on a support body, the clutch gear is rotatably arranged on the transmission gear shaft, and the clutch gear can slide axially on the transmission gear shaft.

[0009] Preferably, the magnetic clutch structure includes a clutch lower shell coaxially arranged with the transmission gear, a clutch middle shell rotatably provided on the transmission gear shaft, and the clutch middle shell can slide axially relative to the transmission gear shaft, and a clutch upper shell is coaxially fixed on one side of the clutch gear, and the clutch lower shell, the clutch middle shell and the clutch upper shell are magnetically connected by magnets.

[0010] Preferably, the clutch middle shell is provided with a limiting hole for cooperating with the magnet. The magnet is a columnar magnet, and the magnet is fixed in the limiting hole.

[0011] Preferably, a rough surface or a bevel tooth surface is provided between the clutch lower shell and the clutch middle shell, and between the clutch middle shell and the clutch upper shell.

[0012] A window opening machine includes the magnetic gear clutch structure as described above, wherein a driving motor is arranged in the support body, the output end of the driving motor is transmission-connected with the driving gear, a shaft end gear is rotatably arranged in the support body, and the shaft end gear is meshed with the output gear.

[0013] Preferably, the support body is a box structure, a pair of support shafts are fixedly provided in parallel in the support body, a driving gear and an output gear are rotatably provided on the two support shafts respectively, and a transmission gear shaft is rotatably or fixedly provided in the support body.

[0014] Preferably, the shaft end gear is fixedly mounted on the output shaft, and the output shaft is rotatably mounted in the support body and one end of the output shaft passes through the support body.

[0015] Preferably, the driving gear and the output gear are double gears, and the output end of the driving motor is provided with a gear pair for transmission connection with the driving gear, and the gear pair, the driving gear, the transmission gear, the clutch gear, the output gear, and the shaft end gear are arranged in a reduction stage.

[0016] The beneficial effects of the utility model are as follows: by setting up a magnetic clutch structure, the magnetic clutch structure in a normal adsorption state can transmit the rotation to the clutch gear when the driving gear drives the transmission gear to rotate, and output it through the output gear. When the output gear is subjected to a small external force, the output gear is restricted from rotating due to the existence of the magnetic attraction. When the output gear is subjected to a large external force, the force transmitted to the clutch gear is large, destroying the magnetic state of the magnetic clutch structure, driving the clutch gear to rotate, and avoiding the situation where the window can move at will in actual use scenarios. The utility model has a simple structure, strong reliability, and can increase the service life to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the magnetic gear clutch structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the magnetic clutch structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion of the window opening machine of the utility model;

[0021] In the figure: 1: support body, 2: driving gear, 3: output gear, 4: transmission gear, 5: magnetic clutch structure, 6: clutch gear, 7: transmission gear shaft, 8: clutch lower shell, 9: clutch middle shell, 10: clutch upper shell, 11: magnet, 12: limiting hole, 13: bevel tooth surface, 14: driving motor, 15: shaft end gear, 16: support shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , 3As shown, in embodiment 1, a magnetic gear clutch structure comprises a driving gear 2 and an output gear 3 which are parallel in axis and rotatably arranged on a support body 1 respectively, wherein the driving gear 2 is meshed with the transmission gear 4 for transmission, the transmission gear 4 is connected with the magnetic clutch structure 5, and is connected with the clutch gear 6 through the magnetic clutch structure 5, the transmission gear 4, the magnetic clutch structure 5, and the clutch gear 6 are coaxially arranged, and the clutch gear 6 is meshed with the output gear 3 for transmission. The magnetic gear clutch structure is simple in structure and highly reliable. By setting the magnetic clutch structure, the magnetic clutch structure in the normal adsorption state can transmit the rotation to the clutch gear when the driving gear drives the transmission gear to rotate, and output it through the output gear. When the output gear is subjected to a small external force, due to the existence of the magnetic attraction, the output gear is restricted from rotating. When the output gear is subjected to a large external force, the force transmitted to the clutch gear is large, destroying the magnetic state of the magnetic clutch structure, driving the clutch gear to rotate, avoiding the situation in which the doors and windows can move freely in windy weather in actual use scenarios, and continuously switch actions, which can increase the service life to a certain extent.

[0024] As a further embodiment, the transmission gear 4 is arranged on the transmission gear shaft 7, the transmission gear shaft 7 is arranged on the support body 1, the clutch gear 6 is rotatably arranged on the transmission gear shaft 7, and the clutch gear 6 can slide axially on the transmission gear shaft 7. When the driving gear is driven normally, it can directly drive the transmission gear to move, and under the action of the magnetic clutch structure, the transmission gear synchronously drives the clutch gear to rotate, and then transmits the rotation to the output gear.

[0025] Embodiment 2, a magnetic gear clutch structure, based on embodiment 1, as Figure 2 As shown, the magnetic clutch structure 5 includes a clutch lower shell 8 coaxially arranged with the transmission gear 4, a clutch middle shell 9 rotatably arranged on the transmission gear shaft 7, and the clutch middle shell 9 can slide axially relative to the transmission gear shaft 7, and a clutch upper shell 10 is coaxially fixedly arranged on one side of the clutch gear 6, and the clutch lower shell 8, the clutch middle shell 9, and the clutch upper shell 10 are magnetically connected by a magnet 11. As an optional specific implementation, one: the clutch lower shell 8, the transmission gear 4, and the transmission gear shaft 7 are fixedly connected, and the transmission gear shaft 7 is rotatably connected with the support body; the second: the clutch lower shell 8 and the transmission gear 4 are fixedly connected, and both are rotatably matched with the transmission gear shaft 7, and the transmission gear shaft is optionally fixed or rotatably arranged on the support body.

[0026] As a further embodiment, a limiting hole 12 for cooperating with the magnet 11 is provided on the clutch middle shell 9 .

[0027] The magnet 11 is a cylindrical magnet, and the magnet is fixed in the limit hole 12. When driven in the forward direction, the two ends of the magnet are respectively adsorbed on the clutch lower shell and the clutch upper shell, and the rotation can be transmitted to the output gear through the drive gear under the adsorption effect. When there is no excessive external force, the output gear cannot drive the drive gear to rotate in the reverse direction, so as to lock the doors and windows in the actual scene. When the doors and windows are subjected to a large external force, the drive gear destroys the magnetic attraction stability and drives the clutch gear to rotate relative to the transmission gear in the reverse direction. In this process, the magnetic attraction stability is destroyed, and the clutch upper shell rotates relative to the clutch middle shell or the clutch 1 middle shell rotates relative to the clutch lower shell, so as to achieve the clutch purpose.

[0028] As a further implementation, a rough surface or a beveled tooth surface 13 is provided between the clutch lower shell 8 and the clutch middle shell 9, and between the clutch middle shell 9 and the clutch upper shell 10. Further providing a rough surface or a beveled tooth surface can make the relative surfaces fit together under the magnetic attraction of the magnet in a normal state, generate friction or meshing restriction between the beveled teeth on the beveled tooth surface, which is conducive to maintaining the transmission of force. In this embodiment, the form of providing beveled teeth on the relative surfaces is adopted, so that only one-way movement can occur between the clutch lower shell 8 and the clutch middle shell 9, and between the clutch middle shell 9 and the clutch upper shell 10 when the adsorption is destroyed, and in this embodiment, the beveled teeth between the clutch lower shell 8 and the clutch middle shell 9, and between the clutch middle shell 9 and the clutch upper shell 10 are in opposite directions. When subjected to a large external force, the magnetic attraction force is difficult to maintain the matching between the beveled tooth surfaces, and misaligned tooth movement occurs to achieve clutching.

[0029] Embodiment 3, a window opening machine, including the magnetic gear clutch structure as described in the above embodiment, wherein a driving motor is provided in the support body 1, and the output end of the driving motor 14 is connected to the driving gear 2 in a transmission manner. In this embodiment, the output end of the driving motor 14 is connected to the driving gear through a gear pair. A shaft end gear 15 is rotatably provided in the support body 1, and the shaft end gear 15 is meshed with the output gear 3. In addition, in this embodiment, the support body 1 is a box structure, and a pair of supporting shafts 16 are fixedly provided in parallel in the support body 1, and the driving gear 2 and the output gear 3 are respectively rotatably provided on the two supporting shafts 16, and the transmission gear shaft 7 is rotatably or fixedly provided in the support body 1. The shaft end gear 15 is fixedly provided on the output shaft, and the output shaft is rotatably provided in the support body 1 and one end passes through the support body 1. In actual use, the output shaft serves as the rotating shaft of the door and window or is connected to the rotating shaft of the door and window to realize the opening and closing of the door and window.

[0030] As a further embodiment, the driving gear 2 and the output gear 3 are double gears, and the output end of the driving motor 14 is provided with a gear pair for transmission connection with the driving gear 2, and the gear pair, the driving gear 2, the transmission gear 4, the clutch gear 6, the output gear 3, and the shaft end gear 15 are arranged in a reduction stage, thereby reducing the required driving force of the driving motor. When the electric door and window starts working, the drive motor drives the gear set in the support body from one end. Since the magnetic clutch structure 5 is located close to the drive motor end, the force output by the drive motor is not amplified much when it reaches the clutch gear. Therefore, the helical teeth of several shells of the magnetic clutch structure will not be misaligned under the attraction of the magnetic force, and the force can continue to be transmitted to the next level and finally output to the window to realize the opening and closing of the window. However, when a force is applied from the window, that is, from the output shaft of the support body to the magnetic clutch structure, the magnetic clutch structure will be stuck under the action of the magnetic force and the helical teeth, thereby providing a resistance to the opening and closing of the window, so that the window will not move freely. Of course, when people need to manually open and close the window, when the push-pull force is greater than the magnetic attraction force, the helical teeth of the clutch will be staggered one by one to realize the opening and closing of the window.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic gear clutch structure, characterized in that: The invention comprises a driving gear (2) and an output gear (3) which are arranged on a support body (1) with axes parallel to each other and rotatably disposed respectively; the driving gear (2) is meshed with a transmission gear (4) for transmission; the transmission gear (4) is connected to a magnetic clutch structure (5) and is connected to a clutch gear (6) via the magnetic clutch structure (5); the driving gear (4), the magnetic clutch structure (5) and the clutch gear (6) are arranged coaxially; and the clutch gear (6) is meshed with the output gear (3) for transmission.

2. The magnetic gear clutch structure according to claim 1, characterized in that: The transmission gear (4) is arranged on a transmission gear shaft (7), the transmission gear shaft (7) is arranged on a support body (1), the clutch gear (6) is rotatably arranged on the transmission gear shaft (7), and the clutch gear (6) can slide axially on the transmission gear shaft (7).

3. The magnetic gear clutch structure according to claim 2, characterized in that: The magnetic clutch structure (5) comprises a clutch lower shell (8) coaxially arranged with the transmission gear (4); a clutch middle shell (9) rotatably arranged on the transmission gear shaft (7), and the clutch middle shell (9) is axially slidable relative to the transmission gear shaft (7); a clutch upper shell (10) is coaxially fixedly arranged on one side of the clutch gear (6); and the clutch lower shell (8), the clutch middle shell (9) and the clutch upper shell (10) are magnetically connected via a magnet (11).

4. The magnetic gear clutch structure according to claim 3, characterized in that: The clutch middle housing (9) is provided with a limiting hole (12) for cooperating with the magnet (11).

5. The magnetic gear clutch structure according to claim 4, characterized in that: The magnet (11) is a columnar magnet, and the magnet is fixed in the limiting hole (12).

6. The magnetic gear clutch structure according to any one of claims 3 to 5, characterized in that: Rough surfaces or beveled tooth surfaces (13) are correspondingly provided between the clutch lower shell (8) and the clutch middle shell (9), and between the clutch middle shell (9) and the clutch upper shell (10).

7. A window opening machine, characterized in that: It comprises a magnetic gear clutch structure as claimed in any one of claims 1 to 6, wherein a driving motor is arranged inside the support body (1), the output end of the driving motor (14) is transmission-connected to the driving gear (2), and a shaft end gear (15) is rotatably arranged inside the support body (1), and the shaft end gear (15) is meshed with the output gear (3).

8. The window opening machine according to claim 7, characterized in that: The support body (1) is a box structure. A pair of support shafts (16) are fixedly arranged in parallel in the support body (1). The driving gear (2) and the output gear (3) are rotatably arranged on the two support shafts (16) respectively. The transmission gear shaft (7) is rotatably or fixedly arranged in the support body (1).

9. The window opening machine according to claim 8, characterized in that: The shaft end gear (15) is fixedly mounted on the output shaft, and the output shaft is rotatably mounted in the support body (1) and one end of the output shaft passes through the support body (1).

10. The window opening machine according to claim 9, characterized in that: The driving gear (2) and the output gear (3) are double gears; the output end of the driving motor (14) is provided with a gear pair for transmission connection with the driving gear (2); the gear pair, the driving gear (2), the transmission gear (4), the clutch gear (6), the output gear (3), and the shaft end gear (15) are arranged in a reduction stage.

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