CN217108039U - Transmission mechanism and door and window opening and closing device - Google Patents

Abstract

The application discloses drive mechanism and door and window switching device relates to mechanical transmission technical field. The transmission mechanism comprises an output shaft, a transmission assembly and a calibration assembly, wherein the transmission assembly and the calibration assembly are respectively connected with the output shaft, the output shaft is used for being connected with a to-be-driven piece, the calibration assembly comprises an adjusting assembly connected with the output shaft and an adjusting locking assembly connected with the adjusting assembly, and the adjusting locking assembly is used for adjusting the state of the adjusting assembly so as to determine the starting angle and/or the ending angle of the rotation of the output shaft through the adjusting assembly. The rotation initial position of the output shaft can be set conveniently, so that the universality and the intellectualization during use are improved.

Description

Transmission mechanism and door and window opening and closing device

Technical Field

The application relates to the technical field of mechanical transmission, in particular to a transmission mechanism and a door and window opening and closing device.

Background

Along with the rapid development of scientific technology and the rapid improvement of people's standard of living, intelligent house also obtains more and more application, and wherein, intelligent door and window control system utilizes domestic electrical equipment to carry out door and window intelligent control's an intelligent house system as system platform through the housing construction, and intelligent door and window control system can realize intelligent security theory, builds comfortable environment.

As for the doors and windows of the building, the doors and windows are still opened and closed manually by users, and once the doors and windows are more or larger, the doors and windows often need to be opened and closed one by consuming more time and physical strength, which causes inconvenience. Based on this, there are door and window opening and closing devices applied to doors and windows to achieve the purpose of electric control. However, when the door and window opening and closing device is installed and used, the device is limited by the arrangement form of the transmission mechanism, the initial positions of doors and windows with different specifications cannot be determined, the transmission mechanism cannot accurately realize the opening and closing of the doors and windows, and therefore the universality of the door and window opening and closing device is poor.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a drive mechanism and door and window switching device, can be convenient for set for the rotation initial position of output shaft to commonality and intellectuality when promoting the use.

The embodiment of the application is realized as follows:

in one aspect of the embodiment of the application, a transmission mechanism is provided, including an output shaft, and respectively with output shaft's transmission assembly and calibration subassembly, the output shaft is used for connecting with waiting to drive piece, the calibration subassembly include with output shaft's adjusting part, and with the regulation locking subassembly that adjusting part connects, adjust the locking subassembly and be used for adjusting part's state, with pass through adjusting part confirms output shaft pivoted initial angle and/or termination angle.

Optionally, the adjusting assembly includes a first adjusting gear and a second adjusting gear which are coaxially rotatably disposed, the second adjusting gear faces one side of the first adjusting gear and is provided with a circuit board, limit switches are disposed on the circuit board at intervals, a boss is disposed on one side of the first adjusting gear facing one side of the second adjusting gear, the first adjusting gear is connected with the output shaft, the second adjusting gear is connected with the adjusting locking assembly, and the adjusting locking assembly is used for adjusting and locking relative positions of the first adjusting gear and the second adjusting gear, so that when the output shaft is located at the initial angle, the boss corresponds to one of the limit switches.

Optionally, the adjustment locking assembly includes a first duplicate gear engaged with the second adjustment gear, and a hand adjustment gear engaged with the first duplicate gear, and the adjustment locking assembly further includes a locking member engaged with the first duplicate gear, and the locking member is used for locking the relative positions of the first adjustment gear and the second adjustment gear.

Optionally, the manual adjustment gear includes an adjustment rod arranged in parallel with a rotating shaft of the first duplicate gear, and a third adjustment gear arranged on the adjustment rod, the locking member is a locking screw arranged in parallel with the adjustment rod, and the locking screw is used for abutting against a side surface of the first duplicate gear.

Optionally, the manual adjustment gear comprises an adjustment rod perpendicular to a rotating shaft of the first duplicate gear, and a third adjustment gear arranged on the adjustment rod, the locking piece is a locking screw parallel to the adjustment rod, a damping block is arranged on the rotating shaft, and the locking screw is used for abutting against the side face of the damping block.

Optionally, the transmission assembly includes a motor and a gear set connected to the motor through a clutch assembly, the output shaft is provided with an output gear, and the gear set is connected to the output shaft through the output gear.

Optionally, the gear set includes a plurality of transmission gears arranged in sequence in a linear manner, and adjacent transmission gears are engaged with each other, and the transmission gears include spur gears and/or duplicate gears.

Optionally, the clutch assembly comprises a manual clutch assembly and an automatic clutch assembly which are connected with each other, an input gear is arranged at the output end of the motor, and a second duplicate gear meshed with the input gear is arranged at the output end of the motor, the second duplicate gear is connected with the manual clutch assembly, and the automatic clutch assembly is connected with the gear set.

Optionally, the manual clutch assembly includes a supporting member and a connecting shaft which are arranged on the housing, and a third dual gear which is slidably connected to the connecting shaft, the supporting member is provided with a button, a first elastic member is arranged between the button and the housing, a second elastic member is arranged between the third dual gear and the housing, and the button is pressed to drive the supporting member to support the third dual gear, so that the third dual gear is disengaged from the automatic clutch assembly.

Optionally, the automatic clutch assembly comprises a fourth duplicate gear and a swing arm support coaxially arranged with the fourth duplicate gear, wherein the two opposite ends of the swing arm support are respectively provided with a first clutch gear and a second clutch gear, the fourth duplicate gear comprises a first gear and a second gear which are arranged in a stacked mode, the first clutch gear and the second clutch gear are respectively meshed with the second gear, and when the second gear rotates, the swing arm rotates and enables the first clutch gear or the second clutch gear to be connected with the gear set.

On the other hand, the embodiment of the present application provides a door and window opening and closing device, which includes a housing, a controller disposed in the housing, and a transmission mechanism as described above, wherein the transmission mechanism is disposed in the housing, and the controller is connected to the transmission mechanism.

The beneficial effects of the embodiment of the application include:

the transmission mechanism and door and window switching device that this application embodiment provided through the output shaft to and respectively with output shaft's drive assembly and calibration subassembly, can drive the output shaft through drive assembly and realize corotation or reversal, when the output shaft is connected with door or window, so that realize required control function through the rotation of output shaft. In addition, through connecting the calibration assembly with the output shaft, the corresponding state of the adjusting assembly can be adjusted according to the current position and the angle of the output shaft, when the state of the adjusting assembly is adjusted, the adjusting assembly can be adjusted by adjusting the locking assembly, and the adjusted state is locked, so that the stability of the adjusted state is ensured. Wherein, after the adjusting component completes the required adjustment, the starting angle and/or the ending angle of the output shaft rotating interval can be determined through the adjusting component. Thus, in the installation process, the rotation initial position of the output shaft can be set conveniently, so that the universality and the intellectualization during use are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a transmission mechanism provided in an embodiment of the present application;

FIG. 2 is a schematic view of an adjustment locking assembly engaged with an output shaft according to an embodiment of the present disclosure;

fig. 3 is a second schematic view of the adjustment locking assembly of the present application in cooperation with the output shaft;

FIG. 4 is a schematic structural diagram of a clutch assembly according to an embodiment of the present disclosure;

fig. 5 is a second schematic structural diagram of a clutch assembly according to an embodiment of the present application;

fig. 6 is a schematic structural view of a door opening and closing device according to an embodiment of the present disclosure;

fig. 7 is a second schematic structural view of the door/window opening/closing device according to the embodiment of the present application.

Icon: 100-a transmission mechanism; 110-an output shaft; 112-output gear; 120-a transmission assembly; 122-a motor; 1222-an input gear; 123-a second duplicate gear; 124-a clutch assembly; 126-gear set; 128-a manual clutch assembly; 1282-a retainer; 1284-connecting shaft; 1285-third duplicate gear; 1286-button; 1287-a first elastic member; 1288-a second elastic member; 1289-guide block; 129-automatic clutch assembly; 1292-a fourth double gear; 1292 a-first gear; 1292 b-second gear; 1294-swing arm support; 1295-a first clutch gear; 1296-second clutch gear; 130-a calibration component; 132-an adjustment assembly; 1322-a first adjusting gear; 1324-a second adjustment gear; 1326-circuit board; 1327-limit switch; 1328-boss; 134-adjusting the locking assembly; 1342-a first duplicate gear; 1342 a-a shaft; 1344-hand adjusting gear; 1344 a-adjusting lever; 1344 b-a third adjustment gear; 1346-a lock; 1348-a damping block; 200-door and window opening and closing device; 210-housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the product of the application is usually placed in when used, and are used only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, the present embodiment provides a transmission mechanism 100, which includes an output shaft 110, and a transmission assembly 120 and a calibration assembly 130 respectively connected to the output shaft 110, wherein the output shaft 110 is used to connect to a member to be driven, the calibration assembly 130 includes an adjusting assembly 132 connected to the output shaft 110, and an adjusting locking assembly 134 connected to the adjusting assembly 132, and the adjusting locking assembly 134 is used to adjust a state of the adjusting assembly 132, so as to determine a start angle and/or an end angle of rotation of the output shaft 110 through the adjusting assembly 132.

Specifically, in a possible embodiment of the present application, the driving member may be a door or a window, so that the door or the window can be driven to open or close by the rotation of the output shaft 110. It can be understood that, in the actual implementation process, not only can be limited to controlling the door and window, but also can be applied to other occasions where needs exist, and the embodiment of the application does not specifically limit the application. When the transmission mechanism 100 is applied to control the opening or closing of a door or a window, if the required opening or closing is realized only by forward rotation or reverse rotation of the output shaft 110, in an actual application process, the current opening angle of the door or the window may not be known, so that the rotation angle of the output shaft 110 cannot be precisely controlled to realize the corresponding opening or closing operation.

By connecting the transmission assembly 120 and the calibration assembly 130 with the output shaft 110 respectively, after the output shaft 110 is connected with a to-be-driven member, the position relation between the adjusting assemblies 132 is changed by adjusting the adjusting locking assembly 134 of the calibration assembly 130, after the adjustment is completed, the adjusted state of the adjusting assemblies 132 is locked, so that the rotation of the output shaft 110 is matched with the adjusting assemblies 132, and when the output shaft 110 rotates, the rotation angle of the output shaft 110 can be determined, so that the required precise control is realized. With the above form, the calibration component 130 only needs to be adjusted during the first installation, and the required control requirements can be realized without re-calibration and debugging in the subsequent control process.

The transmission mechanism 100 provided by the embodiment of the application can drive the output shaft 110 to realize forward rotation or reverse rotation through the output shaft 110, and the transmission assembly 120 and the calibration assembly 130 respectively connected with the output shaft 110, so that when the output shaft 110 is connected with a door or a window, a required control function can be realized through rotation of the output shaft 110. In addition, by connecting the calibration assembly 130 with the output shaft 110, the corresponding state of the adjustment assembly 132 can be adjusted according to the current position and rotation angle of the output shaft 110, and when the state of the adjustment assembly 132 is adjusted, the adjustment can be performed by adjusting the locking assembly 134, and the adjusted state is locked, so as to ensure the stability of the adjusted state. Wherein, after the adjustment assembly 132 completes the required adjustment, the starting angle and/or the ending angle of the rotation interval of the output shaft 110 can be determined by the adjustment assembly 132. Thus, in the installation process, the rotation starting position of the output shaft 110 can be conveniently set, so that the universality and the intelligence during use are improved.

As shown in fig. 2 and 3, the adjusting assembly 132 includes a first adjusting gear 1322 and a second adjusting gear 1324 coaxially and rotatably disposed, a circuit board 1326 is disposed on a side of the second adjusting gear 1324 facing the first adjusting gear 1322, limit switches 1327 are disposed on the circuit board 1326 at intervals, a boss 1328 is disposed on a side of the first adjusting gear 1322 facing the second adjusting gear 1324, the first adjusting gear 1322 is connected with the output shaft 110, the second adjusting gear 1324 is connected with an adjusting locking assembly 134, and the adjusting locking assembly 134 is used for adjusting and locking relative positions of the first adjusting gear 1322 and the second adjusting gear 1324, so that when the output shaft 110 is located at a starting angle, the boss 1328 corresponds to one of the limit switches 1327.

Specifically, the limit switches 1327 spaced apart from each other on the circuit board 1326 are located on the same circumference, so that when the first adjustment gear 1322 rotates relative to the second adjustment gear 1324, interference between a boss 1328 provided on the first adjustment gear 1322 and the limit switch 1327 is avoided. In addition, the adjustment locking assembly 134 adjusts the rotation angle of the second adjustment gear 1324 to rotate the first adjustment gear 1322 relative to the second adjustment gear 1324, and after the adjustment is completed, the adjustment locking assembly 134 locks the second adjustment gear 1324 to prevent the second adjustment gear 1324 from rotating freely. At this time, when the output shaft 110 rotates to drive the first adjusting gear 1322 to rotate, the relative rotation amount of the second adjusting gear 1324 and the second adjusting gear 1324 can be realized through the matching between the boss 1328 and the limit switch 1327.

It should be noted that, in the embodiment of the present application, there is no specific limitation on the setting form of the limit switch 1327, for example, the limit switch 1327 may adopt a proximity switch, an optoelectronic switch or a hall switch, and when the hall switch is adopted, the boss 1328 needs to adopt a magnetic material to ensure the generation of a stable electrical signal. When the photoelectric switch is adopted, a grating type or a light sensation type can be adopted as long as the required requirements can be met. In addition, when controlling the opening and closing of the door and window, the rotation angle of the door and window is limited, and the first adjusting gear 1322 and the second adjusting gear 1324 can meet the required control requirement without rotating a whole circle, so that the first adjusting gear 1322 and the second adjusting gear 1324 can adopt all gears, and can also be flexibly set into sector gears according to the requirement, and the embodiment of the application does not specifically limit the requirement.

As shown in fig. 2 and 3, the adjustment lock assembly 134 includes a first dual gear 1342 engaged with the second adjustment gear 1324, and a hand adjustment gear 1344 engaged with the first dual gear 1342, and the adjustment lock assembly 134 further includes a lock piece 1346 engaged with the first dual gear 1342, and the lock piece 1346 is used for locking the relative positions of the first adjustment gear 1322 and the second adjustment gear 1324.

Specifically, when the manual adjustment gear 1344 rotates, the first dual gear 1342 is driven to rotate, and the first dual gear 1342 drives the second adjustment gear 1324 to rotate, so as to change the relative position of the first adjustment gear 1322 and the second adjustment gear 1324. Wherein, the manual adjusting gear 1344 can be provided with an inner hexagonal blind hole, so that the manual adjusting gear 1344 can be driven to rotate by an inner hexagonal wrench. After the required adjustment requirement is completed, in order to ensure that the adjusted second adjustment gear 1324 is locked, so as to achieve the purpose of calibrating the relative position of the first adjustment gear 1322 and the second adjustment gear 1324, the locking member 1346 may lock the first dual gear 1342, thereby achieving the purpose of locking the second adjustment gear 1324.

As shown in fig. 2, in an alternative embodiment of the present application, the manual adjustment gear 1344 includes an adjustment lever 1344a disposed parallel to the rotation shaft 1342a of the first duplicate gear 1342, and a third adjustment gear 1344b disposed on the adjustment lever 1344a, and the locking member 1346 is a locking screw disposed parallel to the adjustment lever 1344a, and the locking screw is configured to abut against a side surface of the first duplicate gear 1342.

In this manner, the adjusted and locked position is in a direction parallel to the axis of rotation 1342a and the desired adjustment is accomplished in the form of manually adjusting the locking member 1346 and the adjustment lever 1344 a.

As shown in fig. 3, in another alternative embodiment of the present application, the manual adjustment gear 1344 includes an adjustment lever 1344a disposed perpendicular to a rotation shaft 1342a of the first duplicate gear 1342, and a third adjustment gear 1344b disposed on the adjustment lever 1344a, the locking member 1346 is a locking screw disposed parallel to the adjustment lever 1344a, and the rotation shaft 1342a is disposed with a damping block 1348, and the locking screw is configured to abut against a side surface of the damping block 1348.

Specifically, the adjusting rod 1344a and the rotating shaft 1342a are vertically disposed, so that a worm gear transmission form is formed between the third adjusting gear 1344b and the first duplicate gear 1342, and the adjusted position is in a direction perpendicular to the rotating shaft 1342 a. In addition, the locking member 1346 is disposed in parallel with the adjustment lever 1344a, so that the locked position is also in a direction perpendicular to the rotation shaft 1342 a. By adopting the form, in practical application, the locking device can better adapt to the actual installation working condition so as to conveniently adjust and calibrate through adjusting the locking assembly 134.

As shown in fig. 1, the transmission assembly 120 includes a motor 122, and a gear set 126 connected to the motor 122 through a clutch assembly 124, the output shaft 110 is provided with an output gear 112, and the gear set 126 is connected to the output shaft 110 through the output gear 112.

Specifically, the motor 122 is connected with the gear set 126 through the clutch assembly 124, the gear set 126 can be driven to rotate forward as output or rotate backward as output through different states of the clutch assembly 124, and the connection between the motor 122 and the gear set 126 can also be cut off according to actual needs. By adopting the form, when a fault occurs, the internal blockage is avoided, and the manual opening or closing of the door and window is facilitated. Wherein the output gear 112 provided on the output shaft 110 is connected with the gear set 126 to realize the transmission of the torque of the output shaft 110. In addition, the output gear 112 is meshed with the first adjusting gear 1322, and the output shaft 110 rotates while the first adjusting gear 1322 is driven to rotate synchronously.

In an alternative embodiment of the present application, as shown in fig. 1, the gear set 126 includes a plurality of transmission gears arranged in a linear manner, and adjacent transmission gears are engaged with each other, and the transmission gears include spur gears and/or duplicate gears.

Specifically, adopt above-mentioned form, can make the transmission wholly be the bar setting, avoid influencing actual installation because of whole too wide. In addition, the gear set 126 is set to be a combination of a spur gear and a duplicate gear, so that the required transmission relation can be matched better, and the reliability of transmission is ensured.

As shown in fig. 1, 4 and 5, the clutch assembly 124 includes a manual clutch assembly 128 and an automatic clutch assembly 129 connected to each other, an output end of the motor 122 is provided with an input gear 1222, and a second duplicate gear 123 meshed with the input gear 1222, the second duplicate gear 123 is connected with the manual clutch assembly 128, and the automatic clutch assembly 129 is connected with the gear set 126.

Specifically, in order to improve the compactness of the structure, a worm gear may be formed between the input gear 1222 and the second duplicate gear 123, so that the overall compactness is realized while the rotation direction is changed, which is beneficial to realizing the miniaturization arrangement. Through being connected between second duplicate gear 123 and the manual clutch subassembly 128, can establish required connection through manual clutch subassembly 128, also can cut off the connection according to actual need, avoid producing the dead phenomenon of card, can't carry out door and window's switching, be favorable to promoting security and reliability when using.

As shown in fig. 4 and 5, the manual clutch assembly 128 includes a holding member 1282 and a connecting shaft 1284 disposed on the housing, and a third duplicate gear 1285 slidably connected to the connecting shaft 1284, the holding member 1282 is provided with a button 1286, a first elastic member 1287 is disposed between the button 1286 and the housing, a second elastic member 1288 is disposed between the third duplicate gear 1285 and the housing, and the button 1286 is pressed to drive the holding member 1282 to hold the third duplicate gear 1285, so that the third duplicate gear 1285 is disengaged from the automatic clutch assembly 129.

Specifically, the connecting shaft 1284 is disposed parallel to the axis of the second dual gear 123, and in a default state, the third dual gear 1285 is connected to the first dual gear 1342 and the automatic clutch assembly 129 by the force of the second elastic member 1288. When the button 1286 is pressed, the first elastic member 1287 is compressed, and when the button 1286 is close to the third duplicate gear 1285, the abutting member 1282 and the button 1286 move synchronously, so that the button 1286 applies an acting force to the third duplicate gear 1285 through the abutting member 1282, that is, the acting force of the second elastic member 1288 can be overcome, and the third duplicate gear 1285 slides along the connecting shaft 1284, thereby being separated from the connection of the automatic clutch assembly 129. When the button 1286 is no longer acted, the button 1286 and the third duplicate gear 1285 can be respectively reset to the default connection state by the first elastic member 1287 and the second elastic member 1288.

It should be noted that, in the embodiment of the present application, there is no particular limitation on the arrangement form between the button 1286 and the housing, for example, the width of the button 1286 may be greater than the width of the housing (i.e., the structural form in fig. 4), and the button 1286 may be limited by the housing, so that the button 1286 slides linearly. The width of the button 1286 can also be set to be smaller than the width of the shell (i.e., the structural form in fig. 5), at this time, a guide block 1289 can be arranged in the shell to make the button 1286 slide linearly, and the linear sliding of the button 1286 can also be realized directly by means of the internal structure of the shell, and can be flexibly set according to actual needs.

As shown in fig. 4, the automatic clutch assembly 129 includes a fourth dual gear 1292 and a swing arm support 1294 coaxially disposed with the fourth dual gear 1292, the swing arm support 1294 is respectively provided with a first clutch gear 1295 and a second clutch gear 1296 at two opposite ends thereof, the fourth dual gear 1292 includes a first gear 1292a and a second gear 1292b which are stacked, the first clutch gear 1295 and the second clutch gear 1296 are respectively engaged with the second gear 1292b, and when the second gear 1292b rotates, the swing arm is driven to rotate, and the first clutch gear 1295 or the second clutch gear 1296 is connected with the gear set 126.

Specifically, the fourth dual gear 1292 is connected to or disconnected from the third dual gear 1285, and when the first gear 1292a and the second gear 1292b of the fourth dual gear 1292 rotate synchronously in the connected state, the first clutch gear 1295 and the second clutch gear 1296 are driven to rotate synchronously, and the swing arm support 1294 rotates relative to the fourth dual gear 1292, so that the first clutch gear 1295 or the second clutch gear 1296 is connected to the gear set 126. The connection of the first clutch gear 1295 to the gear set 126 or the connection of the second clutch gear 1296 to the gear set 126 is related to the direction of rotation of the fourth duplicate gear 1292 and the swing arm support 1294 has a tendency to follow the direction of rotation of the fourth duplicate gear 1292. In this way, when the driving direction of the motor 122 is changed, the direction of the transmission can be changed while the automatic clutch assembly 129 is temporarily disengaged and reconnected.

As shown in fig. 6 and 7, the present embodiment further discloses a door and window opening and closing device 200, which includes a housing 210, a controller disposed in the housing 210, and the transmission mechanism 100 in the foregoing embodiment, wherein the transmission mechanism 100 is disposed in the housing 210, and the controller is connected to the transmission mechanism 100. The door opening and closing device 200 includes the same structure and advantageous effects as those of the transmission mechanism 100 in the previous embodiment. The structure and advantages of the transmission mechanism 100 have been described in detail in the foregoing embodiments, and are not described in detail herein.

The controller is connected to the motor 122 of the transmission mechanism 100, and controls the rotation of the motor 122 to realize the final driving function. In addition, the output shaft 110 and the button 1286 may be disposed on the same side of the housing 210, or may be disposed on the opposite side, and may be flexibly disposed according to actual requirements.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. A transmission mechanism is characterized by comprising an output shaft, a transmission assembly and a calibration assembly, wherein the transmission assembly and the calibration assembly are respectively connected with the output shaft, the output shaft is used for being connected with a to-be-driven piece, the calibration assembly comprises an adjusting assembly connected with the output shaft and an adjusting locking assembly connected with the adjusting assembly, and the adjusting locking assembly is used for adjusting the state of the adjusting assembly so as to determine the starting angle and/or the ending angle of rotation of the output shaft through the adjusting assembly.

2. The transmission mechanism according to claim 1, wherein the adjusting assembly includes a first adjusting gear and a second adjusting gear which are coaxially and rotatably disposed, a circuit board is disposed on a side of the second adjusting gear facing the first adjusting gear, limit switches are disposed on the circuit board at intervals, a boss is disposed on a side of the first adjusting gear facing the second adjusting gear, the first adjusting gear is connected with the output shaft, the second adjusting gear is connected with the adjusting locking assembly, and the adjusting locking assembly is configured to adjust and lock relative positions of the first adjusting gear and the second adjusting gear, so that when the output shaft is located at the initial angle, the boss corresponds to one of the limit switches.

3. The transmission mechanism as recited in claim 2, wherein the adjustment lock assembly includes a first duplicate gear in meshing engagement with the second adjustment gear, and a hand-operated adjustment gear in meshing engagement with the first duplicate gear, the adjustment lock assembly further including a lock member cooperating with the first duplicate gear for locking the relative positions of the first and second adjustment gears.

4. The transmission mechanism as claimed in claim 3, wherein the manual adjustment gear comprises an adjustment lever disposed parallel to the rotation axis of the first dual gear, and a third adjustment gear disposed on the adjustment lever, the locking member is a locking screw disposed parallel to the adjustment lever, and the locking screw is configured to abut against a side surface of the first dual gear.

5. The transmission mechanism according to claim 3, wherein the manual adjustment gear comprises an adjustment lever disposed perpendicular to a rotation shaft of the first dual gear, and a third adjustment gear disposed on the adjustment lever, the locking member is a locking screw disposed parallel to the adjustment lever, and the rotation shaft is disposed with a damping block, and the locking screw is configured to abut against a side surface of the damping block.

6. The transmission mechanism according to any one of claims 1 to 5, wherein the transmission assembly comprises a motor and a gear set connected with the motor through a clutch assembly, an output gear is arranged on the output shaft, and the gear set is connected with the output shaft through the output gear.

7. The transmission mechanism as claimed in claim 6, wherein the gear set comprises a plurality of transmission gears arranged in a linear manner, adjacent transmission gears are meshed with each other, and the transmission gears comprise spur gears and/or duplicate gears.

8. The transmission mechanism as claimed in claim 6, wherein the clutch assembly includes a manual clutch assembly and an automatic clutch assembly connected with each other, the output end of the motor is provided with an input gear, and a second duplicate gear engaged with the input gear, the second duplicate gear is connected with the manual clutch assembly, and the automatic clutch assembly is connected with the gear set.

9. The transmission mechanism according to claim 8, wherein the manual clutch assembly includes a supporting member and a connecting shaft disposed on the housing, and a third dual gear slidably connected to the connecting shaft, the supporting member is provided with a button, a first elastic member is disposed between the button and the housing, a second elastic member is disposed between the third dual gear and the housing, and the button is pressed to drive the supporting member to support the third dual gear, so that the third dual gear is disengaged from the automatic clutch assembly.

10. The transmission mechanism according to claim 9, wherein the automatic clutch assembly includes a fourth dual gear and a swing arm bracket coaxially disposed with the fourth dual gear, opposite ends of the swing arm bracket are respectively provided with a first clutch gear and a second clutch gear, the fourth dual gear includes a first gear and a second gear disposed in a stacked manner, the first clutch gear and the second clutch gear are respectively engaged with the second gear, and when the second gear rotates, the swing arm is driven to rotate, and the first clutch gear or the second clutch gear is connected with the gear set.

11. A door and window opening and closing device, comprising a housing, a controller disposed in the housing, and the transmission mechanism of any one of claims 1 to 10, wherein the transmission mechanism is disposed in the housing, and the controller is connected to the transmission mechanism.

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