Gear clutch structure and door and window opening machine

Abstract

The utility model discloses a gear clutch structure and a door and window opening machine, relates to the technical field of gear clutch structures, and solves the problems of high processing difficulty and poor stability in the prior art. The device comprises a driving gear set arranged on a supporting body, a guide sliding groove matched with the driving gear set is formed in the supporting body, a clutch gear is arranged on the guide sliding groove in a sliding mode, and the clutch gear is in transmission fit with the driving gear set; a driven gear set matched with the clutch gear is arranged on the supporting body, and the driven gear set and the clutch gear can be meshed at the two ends of the guide sliding groove. According to the utility model, the conventional standard gear is matched with the guide chute, the meshing and separation of the gears are realized through position switching caused by sliding, the problem of high processing difficulty caused by a complicated gear structure in the prior art is avoided, and meanwhile, the gear shifting mechanism is simple and reliable in structure and high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of gear clutch structures, in particular to a gear clutch structure and a door and window opener. Background Art

[0002] With the improvement of technology and quality of life, electric doors and windows, as an important part of smart home, are gradually being loved and accepted by the majority of users. Its convenient opening and closing function undoubtedly reduces people's daily burden, especially providing great convenience for families with disabled people or the elderly.

[0003] The existing electric window and door design has a built-in window opener at the handle, which is equipped with a motor and a gear set. The gear set is driven by the forward and reverse rotation of the motor to achieve the locking and unlocking of the doors and windows. However, this structure has some problems. First, the user cannot freely switch to manual mode when the motor is running. Once the gear inside the motor is stuck, the doors and windows will be directly locked and can no longer be opened and closed. At this time, only professional maintenance personnel can be sought for help. Secondly, even if the motor is not running, the manual opening and closing of the doors and windows will still drive the rotation of the motor output rod, which may damage the internal structure of the motor and reduce its performance and service life. In addition, manually opening and closing doors and windows is also more laborious.

[0004] A Chinese invention patent with publication number CN114483811A discloses a ball clutch structure, in which a ball sleeve is provided in the middle of a power input gear, a transmission shaft is extended from the bottom of the ball sleeve, a rotating shaft with one end passing through the transmission shaft and the other end passing through the power output gear is provided in the middle, the ball sleeve is provided with a channel for accommodating balls, and a paddle is provided on the inner side. When the power input gear rotates, the paddle is driven to paddle the balls to make them cooperate with the slots, thereby driving the power output gear to rotate. This invention drives the power output gear to rotate by driving the paddle to paddle the balls to make the balls cooperate with the slots when the power input gear rotates, thereby driving the door and window sashes to open or close automatically. When the power input gear stops rotating, the balls are reset through the slide groove and the magnetic column. At this time, the power output gear can rotate freely to achieve manual opening. This clutch structure has high efficiency, can be fully clutched, and effectively avoids tooth jumping.

[0005] This solution realizes transmission through the cooperation of balls and slots, and releases the power output gear through the magnetic attraction of the slide slot and magnetic column. The transmission capacity is limited, and the stability and reliability are poor after long-term use due to weakening of magnetism. The power output gear with a slot is difficult to process, resulting in high production costs. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a gear clutch structure and a door and window opening machine, which solve the problems of difficult processing and poor stability in the prior art.

[0007] The technical solution of the utility model is implemented as follows: a gear clutch structure, including a driving gear set arranged on a support body, a guide slide groove is provided on the support body to cooperate with the driving gear set, a clutch gear is slidably provided on the guide slide groove, and the clutch gear is transmission-coordinated with the driving gear set; a driven gear set is provided on the support body to cooperate with the clutch gear, and the driven gear set and the clutch gear can mesh at both ends of the guide slide groove, and the transmission ratios between the driving gear set and the clutch gear, and between the clutch gear and the driven gear set are both greater than 1.

[0008] Preferably, the driving gear set includes a driving gear rotatably arranged on the support body, the driving gear is in transmission cooperation with the driving gear, and the driving gear is in transmission cooperation with the clutch gear.

[0009] Furthermore, the driving gear and the active gear are connected via at least one stage of reduction gear transmission.

[0010] Preferably, the guide slot is an arc-shaped slot fixedly mounted on the support body and coaxially mounted with the driving gear. The clutch gear is coaxially mounted on a slide bar, the end of the slide bar is connected to a bearing, and the bearing is mounted in the guide slot and can move along the guide slot.

[0011] Furthermore, the minimum distance from the side wall of the slide bar to the axis of the driving gear is greater than the distance from the outermost end of the driving gear to the axis of the driving gear. The driving gear, reduction gear, driving gear, and clutch gear are all double gears. The transmission ratios between adjacent driving gears, reduction gears, driving gears, clutch gears, and driven gear groups are all greater than 1.

[0012] Preferably, the driven gear group includes a driven gear I and a driven gear II rotatably arranged on the support body, and the driven gear I and the driven gear II are respectively arranged corresponding to the two ends of the guide groove, and the driven gear I and the driven gear II are both meshed with the output gear rotatably arranged on the support body, and the clutch gear is respectively meshed with the driven gear I and the driven gear II at the two ends of the guide groove.

[0013] A door and window opening machine comprises the gear clutch structure as described above, wherein the support body is fixedly connected to a driving motor, and the main shaft of the driving motor is drivingly connected to a driving gear set.

[0014] The beneficial effects of the utility model are as follows: during normal operation, the active gear set first drives the clutch gear to slide on the guide slot to switch positions, so that the clutch gear meshes with the driven gear set to meet the transmission purpose. When the driven gear set is subjected to external force, the clutch gear is moved to slide along the guide slot, thereby disconnecting the meshing state of the clutch gear and the driven gear set, avoiding jamming between gears caused by external force, and achieving the purpose of clutch control. In addition, the design form of the reduction transmission reduces the requirements for the driving force of the driving gear. The utility model uses conventional standard gears with guide slots to reduce the manufacturing difficulty and cost. At the same time, the position switching brought about by sliding realizes the meshing and separation between gears, avoiding the problem of high processing difficulty caused by the complex gear structure in the prior art. The structure is simple and reliable, and the stability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model when the clutch gear is not meshed with the driven gear set;

[0017] Figure 2 It is a schematic diagram of the partial structure of the utility model when the clutch gear is not meshed with the driven gear set;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the utility model when the clutch gear and the driven gear set are in meshing state;

[0019] Figure 4 It is a schematic diagram of the structure of the utility model when the clutch gear and the driven gear set are in meshing state;

[0020] In the figure: 1: driving gear set, 2: guide slide, 3: clutch gear, 4: driven gear set, 5: driving gear, 6: driving gear, 7: reduction gear, 8: slide bar, 9: bearing, 10: driven gear I, 11: driven gear II, 12: output gear. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figures 1 to 4 As shown, in embodiment 1, a gear clutch structure includes a driving gear set 1 arranged on a support body, a guide slot 2 is provided on the support body to cooperate with the driving gear set, a clutch gear 3 is slidably provided on the guide slot 2, and the clutch gear 3 is in transmission cooperation with the driving gear set 1. In this embodiment, the driving gear set 1 includes a driving gear 5 rotatably arranged on the support body, the driving gear 5 is in transmission cooperation with the driving gear 6, and the driving gear 6 is in transmission cooperation with the clutch gear 3. A driven gear set 4 is provided on the support body to cooperate with the clutch gear 3, and the driven gear set 4 and the clutch gear 3 can mesh at both ends of the guide slot 2.

[0023] When this embodiment is used, Figure 3 , 4 As shown, during normal operation, the driving gear 5 of the driving gear set 1 rotates forward, and the driving gear 6 drives the clutch gear 3 to slide along the guide slot 2 to one end, so that the clutch gear 3 and the driven gear set 4 mesh at one end of the guide slot 2 to form a transmission connection. When the driving gear 5 rotates in the reverse direction, the driving gear 6 drives the clutch gear 3 to move along the guide slot 2 to the other end until the clutch gear 3 and the driven gear set 4 mesh at the other end, realizing the switching of the meshing position and meeting the transmission purpose. Figure 1 , 2 As shown, when the driven gear set 4 is subjected to external force, the driven gear set 4 rotates, and the clutch gear 3 is moved to slide along the guide slot 2 toward the middle of the guide slot 2, so that the meshing state of the clutch gear 3 and the driven gear set 4 is disconnected, and the jamming between the gears caused by the external force is avoided, so as to achieve the purpose of clutch control. The gears used in this structure are all conventional gears, which are simple to manufacture and can reduce costs. At the same time, the clutch control process is fast and reliable.

[0024] As a further implementation scheme, the transmission ratios between the driving gear 6 of the driving gear set 1 and the clutch gear 3, and between the clutch gear 3 and the driven gear set 4 are both greater than 1. The design form of reduction transmission reduces the requirements on the driving force of the driving gear, and the forward drive is more labor-saving.

[0025] Embodiment 2, a gear clutch structure, based on embodiment 1, the guide slot 2 is an arc-shaped slot fixedly arranged on the support body, the guide slot 2 is coaxially arranged with the driving gear 6, and the guide slot 2 can be optionally arranged with two or only one symmetrically arranged up and down. In this embodiment, two guide slots 2 are symmetrically arranged up and down on the support body, and the clutch gear 3 is coaxially arranged on the slide bar 8. The end of the slide bar 8 is connected to the bearing 9, and the bearing 9 is arranged in the guide slot 2 and can move along the guide slot 2. The inner ring of the bearing is fixedly connected to the end of the slide bar 8, and the outer ring can slide or roll along the guide slot 2. Furthermore, the width of the guide slot 2 is slightly larger than the bearing diameter to meet the movement of the bearing. Under the meshing of the driving gear and the clutch gear, the guide slot and the bearing cooperate to limit the radius of the sliding path of the slide bar, so the slide bar does not tilt.

[0026] As a further optional implementation scheme, a slider is slidably provided on the guide groove 2, a bearing 9 is provided on the slider, the outer ring of the bearing 9 is fixedly connected to the slider, the inner rings of the bearings 9 on the two sliders are fixedly connected to the two ends of the slide rod 8, and the clutch gear 3 is coaxially fixed on the slide rod 8, so that the clutch gear can both rotate and slide with the slider.

[0027] In this embodiment, the minimum distance from the side wall of the slide bar 8 to the axis of the driving gear is greater than the distance from the outermost end of the driving gear to the axis of the driving gear, thereby avoiding collision and interference between the slide bar 8 and the driving gear 6 and affecting normal operation.

[0028] As a further optional embodiment, the bearing 9 is a damping bearing, which limits the free rotation of the clutch gear 3, so that when the slide rod is not at the end of the guide slide groove 2, the rotation of the driving gear 6 can first drive the clutch gear to move to the end of the arc slide groove with the slider, and then drive the clutch gear to rotate.

[0029] Embodiment 3, a gear clutch structure, based on embodiment 2, the driving gear 5 and the driving gear 6 are connected by at least one stage of reduction gear 7. The driving gear 5, the reduction gear 7, the driving gear 6, and the clutch gear 3 are all double gears. In addition, in this embodiment, the transmission ratios between adjacent driving gears 5, reduction gears 7, driving gears 6, clutch gears 3, and driven gear sets 4 are all greater than 1, so that the gear clutch structure forms a reduction transmission, reducing the driving force required by the driving end of the driving gear 5 in daily use.

[0030] The driven gear set 4 includes a driven gear I10 and a driven gear II11 which are rotatably mounted on the support body. The driven gear I10 and the driven gear II11 are respectively arranged corresponding to the two ends of the guide slot 2. The driven gear I10 and the driven gear II11 are both meshed with the output gear 12 which is rotatably mounted on the support body. The clutch gear 3 is respectively meshed with the driven gear I10 and the driven gear II11 at the two ends of the guide slot 2. In this embodiment, the driven gear I10 and the driven gear II11 have the same size and are both spur gears. The driven gear I10 and the driven gear II11 are symmetrical about the perpendicular bisector of the line connecting the two end points of the guide groove, and the transmission ratios of the driven gear I10 and the driven gear II11 to the output gear 12 are both less than 1, and the transmission ratios of the clutch gear 3 to the driven gear I10 and the driven gear II11 are both greater than 1, so that when the output gear 12 is subjected to a small external force or collision, it can be transmitted to the driven gear I10 or the driven gear II11, and the transmission ratio between the driving gear 6 and the clutch gear 3 is greater than 1, and it is difficult for the driven gear I10 or the driven gear II11 to reversely transmit the force to the driving gear 6 through the clutch gear 3, so that the driven gear I10 or the driven gear II11 drives the clutch gear to slide along the guide groove to achieve separation from the meshing state.

[0031] Embodiment 4, a door and window opening machine, includes the gear clutch structure as described in any of the above embodiments, the support body is fixedly connected to the driving motor, the main shaft of the driving motor is transmission connected to the driving gear 5, in this embodiment, a helical gear is provided on the output shaft of the driving motor, the first stage of the driving gear is a helical gear, and the two are meshed and transmitted through the helical gears.

[0032] When the present embodiment is in use, the support body is a conventional box structure, which is mainly used to form a support connection foundation. The support body is fixed on the window frame or door frame. When the driving motor rotates, it drives the first stage gear of the driving gear 5 to rotate, and synchronously drives its second stage to rotate, and then synchronously drives the reduction gear 7 to rotate. The reduction gear 7 drives the driving gear 6 to rotate, and then drives the clutch gear 3 to first slide to one end of the guide slide groove 2, and then meshes with the driven gear I10 or the driven gear II11 to realize transmission, and finally transmits the power to the output gear 12. In the present embodiment, the gear shaft of the output gear 12 passes through the support body and is directly connected to the hinge shaft of the door body or window body to drive the door body relative to the door frame or the window body relative to the window frame. When the power is off or manual opening and closing is required, the door body or window is directly moved to drive the output gear 12 to rotate, and the driven gear I10 or the driven gear II11 is moved to make the clutch gear bounce open and slide on the guide slide groove to release the meshing state.

[0033] 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 gear clutch structure, characterized in that: The invention comprises a driving gear set (1) arranged on a support body, a guide slot (2) cooperating with the driving gear set (1) on the support body, a clutch gear (3) slidably arranged on the guide slot (2), and the clutch gear (3) and the driving gear set (1) are transmission-cooperated; a driven gear set (4) cooperating with the clutch gear (3) is arranged on the support body, and the driven gear set (4) and the clutch gear (3) can mesh at both ends of the guide slot (2), and the transmission ratios between the driving gear set (1) and the clutch gear (3) and between the clutch gear (3) and the driven gear set (4) are both greater than 1.

2. The gear clutch structure according to claim 1, characterized in that: The driving gear set (1) comprises a driving gear (5) rotatably arranged on a support body, the driving gear (5) and the driving gear (6) are in transmission cooperation with each other, and the driving gear (6) and the clutch gear (3) are in transmission cooperation with each other.

3. The gear clutch structure according to claim 2, characterized in that: The driving gear (5) and the active gear (6) are transmission-connected via at least one stage of reduction gear (7).

4. The gear clutch structure according to claim 3, characterized in that: The guide sliding groove (2) is a circular arc groove fixedly arranged on the support body and arranged coaxially with the driving gear (6).

5. The gear clutch structure according to claim 4, characterized in that: The clutch gear (3) is coaxially arranged on the slide rod (8), the end of the slide rod (8) is connected to the bearing (9), and the bearing (9) is arranged in the guide slide groove (2) and can move along the guide slide groove (2).

6. The gear clutch structure according to claim 5, characterized in that: The minimum distance between the side wall of the slide bar (8) and the axis of the driving gear (6) is greater than the distance between the outermost end of the driving gear (6) and the axis of the driving gear.

7. The gear clutch structure according to claim 6, characterized in that: The driving gear (5), the reduction gear (7), the driving gear (6), and the clutch gear (3) are all double gears.

8. The gear clutch structure according to claim 7, characterized in that: The transmission ratios between any two of the adjacent driving gears (5), reduction gears (7), driving gears (6), and clutch gears (3) are all greater than 1.

9. The gear clutch structure according to any one of claims 1 to 8, characterized in that: The driven gear set (4) comprises a driven gear I (10) and a driven gear II (11) rotatably mounted on a support body, the driven gear I (10) and the driven gear II (11) being respectively arranged corresponding to the two ends of the guide slide groove (2), the driven gear I (10) and the driven gear II (11) both being meshed with an output gear (12) rotatably mounted on the support body, and the clutch gear (3) being respectively meshed with the driven gear I (10) and the driven gear II (11) at the two ends of the guide slide groove (2).

10. A door and window opening machine, characterized in that: It comprises the gear clutch structure as claimed in any one of claims 1 to 9, wherein the support body is fixedly connected to the drive motor, and the main shaft of the drive motor is transmission-connected to the driving gear set (1).

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