Adjustable stroke drive mechanism

Abstract

This utility model discloses an adjustable stroke drive mechanism, including a drive unit, a transmission shaft, and a stroke adjustment mechanism. The stroke adjustment mechanism includes a housing and a transmission mechanism, a control board, a chip, a magnet, a first position switch, and an adjusting screw mounted on the housing. The drive unit drives the transmission shaft to rotate, thereby driving the transmission mechanism to rotate. The magnet rotates with the rotation of the transmission mechanism. The chip is positioned corresponding to the magnet and is used to sense the magnet. The first position switch moves with the rotation of the transmission mechanism. The adjusting screw is rotatably mounted on the housing. One end of the adjusting screw protrudes outside the housing, and the other end extends into the housing and connects to the first position switch. The chip and the first position switch are electrically connected to the control board. Thus, it achieves an adjustable stroke design, which can meet the user's needs for different strokes.

Description

Technical Field

[0001] This utility model relates to the field of lifting window drive technology, and in particular to a drive mechanism with adjustable stroke. Background Technology

[0002] As people's living conditions improve, balconies have become a basic feature of ordinary residential buildings. Balconies in ordinary residential buildings serve functions such as lighting and ventilation, drying clothes, noise insulation, and daily leisure. In order to meet people's expectations for balcony functions, most people use lift-up windows for balcony enclosure and windows.

[0003] With the development of technology and the arrival of the smart era, the window sizes of many large buildings and homes are becoming increasingly larger. In current technology, the opening of large windows is achieved by installing a window opener at each end of the window. Both window openers include a drive motor, a transmission gear set, and a drive shaft. The drive motor drives the transmission gear set to rotate, which in turn drives the chains on both sides of the window to raise and lower it. A limit switch is installed on the bracket at the chain exit so that it can be triggered after the chain has fully slid out, stopping the motor. There is no instantaneous overcurrent during operation, which improves the reliability and service life of the control system. However, this type of limit switch has a fixed position and can only be triggered after the chain has fully slid out. In actual installation, the window lifting stroke may vary due to the installation of hinges of different sizes, or the window lifting space may be restricted. It is necessary to adjust the window lifting stroke, which means adjusting the chain movement stroke, i.e., adjusting the stroke of the drive mechanism. This fixed limit switch design cannot meet the requirements of adjustable stroke design.

[0004] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide an adjustable stroke drive mechanism, which realizes an adjustable stroke design and can meet the user's needs for different strokes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable stroke drive mechanism includes a drive unit, a transmission shaft, and a stroke adjustment mechanism;

[0008] The stroke adjustment mechanism includes a housing and a transmission mechanism, a control board, a chip, a magnet, a first position switch, and an adjusting screw mounted on the housing. The drive unit drives the transmission shaft to rotate, thereby driving the transmission mechanism to rotate. The magnet rotates with the rotation of the transmission mechanism. The chip is positioned corresponding to the magnet and is used to sense the magnet. The first position switch moves with the rotation of the transmission mechanism. The adjusting screw is rotatably mounted on the housing. One end of the adjusting screw protrudes outside the housing, and the other end extends into the housing and connects to the first position switch. The chip and the first position switch are electrically connected to the control board.

[0009] As a preferred embodiment, the first position switch is connected to the transmission mechanism via a moving block, and a second position switch is provided inside the housing. The second position switch is located on the side of the moving block away from the adjusting screw, and the second position switch is electrically connected to the control board.

[0010] As a preferred embodiment, the transmission mechanism includes a transmission gear and a linkage gear that mesh with each other. The transmission gear is sleeved on the transmission shaft, the magnet is mounted on one end face of the linkage gear, and the movable block is movably mounted on the other end face of the linkage gear by a linkage screw. One end of the linkage screw is connected to the other end face of the linkage gear, and the axes of the magnet, the linkage gear, and the linkage screw coincide.

[0011] As a preferred embodiment, the stroke adjustment mechanism further includes a connector, one end of which extends into the housing and is electrically connected to the control board.

[0012] As a preferred embodiment, the driving unit is a drive motor.

[0013] As a preferred embodiment, one end of the drive unit is provided with a fixed base, one end of the drive shaft passes through the fixed base, the fixed base is provided with a plurality of fixing holes, and the housing is connected to the fixing holes by fixing screws.

[0014] As a preferred embodiment, the housing includes a first base shell, a middle plate, a second base shell, and an end cap. The first base shell and the end cap are respectively fastened to both sides of the second base shell by first screws. The first base shell and the second base shell form an installation cavity. The middle plate, control board, chip, first position switch, transmission gear, linkage gear, moving block, second position switch, and linkage screw are all located in the installation cavity. The middle plate is fastened to the first base shell by second screws. The control board is installed on the side of the middle plate facing the first base shell. The chip is installed on the side of the control board facing the middle plate. The first position switch, transmission gear, linkage gear, moving block, second position switch, and linkage screw are all located on the side of the middle plate away from the first base shell.

[0015] As a preferred embodiment, a relief cavity is formed between the end cap and the second base shell, the relief cavity is connected to the mounting cavity, the movable block is movable within the relief cavity, and the adjusting screw is rotatably mounted on the end cap; one end of the adjusting screw protrudes outside the end cap, and the other end extends into the relief cavity; the other end of the linkage screw extends into the relief cavity and is constrained by the inner wall of the end cap.

[0016] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly involves making the stroke adjustment mechanism include a transmission mechanism, a control board, a chip, a magnet, a first position switch, and an adjusting screw. The drive unit drives the transmission shaft to rotate, thereby driving the transmission mechanism to rotate. The magnet rotates with the rotation of the transmission mechanism. The chip is positioned corresponding to the magnet, so that the first position switch moves with the rotation of the transmission mechanism. The adjusting screw is rotatably mounted on the housing and connected to the first position switch. The chip and the first position switch are electrically connected to the control board. Thus, while the drive unit drives the transmission shaft to rotate, the magnet rotates with the rotation of the transmission mechanism. The stroke information is obtained in real time through the induction between the magnet and the chip, so that the stroke can be adjusted through the main control. Furthermore, the adjusting screw can be manually rotated, and the first position switch senses the rotation stroke of the adjusting screw and feeds the rotation stroke information back to the control board. The control board records and analyzes the information to adjust the stroke through the main control, thereby achieving the purpose of manual fine adjustment. In this way, it realizes the adjustable stroke design, which can meet the user's needs for different strokes.

[0017] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this utility model from another angle;

[0020] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0021] Figure 4 This is another exploded view of an embodiment of the present utility model;

[0022] Figure 5 This is an exploded view of the stroke adjustment mechanism according to an embodiment of the present utility model;

[0023] Figure 6 yes Figure 5 Another angle view of the structure shown;

[0024] Figure 7 This is another exploded view of the stroke adjustment mechanism according to an embodiment of the present utility model;

[0025] Figure 8 yes Figure 7 Another angle view of the structure shown;

[0026] Figure 9 This is a cross-sectional schematic diagram of the stroke adjustment mechanism according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached diagram:

[0028] 10. Drive unit; 20. Transmission shaft

[0029] 30. Shell 31. First base shell

[0030] 32. Middle plate; 33. Second base shell

[0031] 34. End cap; 35. Mounting cavity

[0032] 36. Displacement cavity; 40. Control panel

[0033] 50. Chip 60. Magnet

[0034] 70. First position switch; 80. Adjusting screw

[0035] 90. Connector; 101. Mounting base

[0036] 1011, Fixing hole 102, Moving block

[0037] 103. Second position switch; 104. Transmission gear

[0038] 105. Linkage gear; 106. Linkage screw. Detailed Implementation

[0039] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", and "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Please refer to Figures 1 to 9As shown, it illustrates the specific structure of an embodiment of the present invention, which is mainly but not limited to the application of lifting windows, and can also be applied to various lifting, sliding, folding, and sliding door and window devices as well as industrial and agricultural automation devices.

[0041] An adjustable stroke drive mechanism includes a drive unit 10, a transmission shaft 20, and a stroke adjustment mechanism. The drive unit 10 is a drive motor. The stroke adjustment mechanism includes a housing 30 and a transmission mechanism, a control board 40, a chip 50, a magnet 60, a first position switch 70, and an adjusting screw 80 mounted on the housing 30. The drive unit 10 drives the transmission shaft 20 to rotate, thereby rotating the transmission mechanism. The magnet 60 rotates with the rotation of the transmission mechanism. The chip 50 is positioned corresponding to the magnet 60 and is used to sense the magnet 60. The magnet 60 is a bipolar magnet. The first position switch 70 moves with the rotation of the transmission mechanism. The adjusting screw 80 is rotatably mounted on the housing 30. One end of the adjusting screw 80 protrudes outside the housing 30, and the other end extends... The chip 50 is inserted into the housing 30 and connected to the first position switch 70; the chip 50 and the first position switch 70 are electrically connected to the control board 40 respectively; thus, when the drive unit 10 drives the transmission shaft 20 to rotate the transmission mechanism, the magnet 60 rotates with the rotation of the transmission mechanism, so as to obtain the stroke information in real time through the induction between the magnet 60 and the chip 50, so that the stroke can be adjusted by the main control, and the adjustment screw 80 can be manually rotated, and the first position switch 70 senses the rotation stroke of the adjustment screw 80 and feeds the rotation stroke information back to the control board 40, which records and analyzes it so that the stroke can be adjusted by the main control, thereby achieving the purpose of manual fine adjustment. In this way, the stroke is adjustable, which can meet the user's needs for different strokes.

[0042] The stroke adjustment mechanism also includes a connector 90, one end of which extends into the housing 30 and is electrically connected to the control board 40.

[0043] One end of the drive unit 10 is provided with a fixed base 101, one end of the drive shaft 20 passes through the fixed base 101, the fixed base 101 is provided with a plurality of fixing holes 1011, and the housing 30 is connected to the fixing holes 1011 by fixing screws.

[0044] The first position switch 70 is connected to the transmission mechanism via a moving block 102. A second position switch 103 is provided inside the housing 30. The second position switch 103 is located on the side of the moving block 102 away from the adjusting screw 80. The second position switch 103 is electrically connected to the control board 40. Thus, by setting the second position switch 103, the travel information of the moving block 102 can be obtained in real time and the travel information can be fed back to the control board 40.

[0045] The transmission mechanism includes a transmission gear 104 and a linkage gear 105 that mesh with each other. The transmission gear 104 is sleeved on the transmission shaft 20. The magnet 60 is installed on one end face of the linkage gear 105. The moving block 102 is movably installed on the other end face of the linkage gear 105 by a linkage screw 106. One end of the linkage screw 106 is connected to the other end face of the linkage gear 105. The axes of the magnet 60, the linkage gear 105, and the linkage screw 106 coincide.

[0046] The housing 30 includes a first base shell 31, a middle plate 32, a second base shell 33, and an end cap 34. The first base shell 31 and the end cap 34 are respectively fastened to both sides of the second base shell 33 by first screws. The first base shell 31 and the second base shell 33 form an installation cavity 35. The middle plate 32, control board 40, chip 50, first position switch 70, transmission gear 104, linkage gear 105, moving block 102, second position switch 103, and linkage screw 106 are all located in the installation cavity 35. The middle plate 32 is fastened to the first base shell 31 by second screws. The control board 40 is installed on the side of the middle plate 32 facing the first base shell 31. The chip 50 is installed on the side of the control board 40 facing the middle plate 32. The first position switch 70, transmission gear 104, linkage gear 105, moving block 102, second position switch 103, and linkage screw 106 are all located on the side of the middle plate 32 away from the first base shell 31. The axis of the linkage screw 106 coincides with that of the adjusting screw 80, and the first base shell 31 is connected to the fixing hole 1011 by a fixing screw.

[0047] A clearance cavity 36 is formed between the end cap 34 and the second base shell 33. The clearance cavity 36 is connected to the mounting cavity 35. The moving block 102 can move within the clearance cavity 36. The adjusting screw 80 is rotatably mounted on the end cap 34. One end of the adjusting screw 80 protrudes outside the end cap 34, and the other end extends into the clearance cavity 36. The other end of the linkage screw 106 extends into the clearance cavity 36 and is constrained by the inner wall of the end cap 34.

[0048] In summary, the key design feature of this utility model lies in its stroke adjustment mechanism, which includes a transmission mechanism, a control board, a chip, a magnet, a first position switch, and an adjusting screw. The drive unit drives the transmission shaft to rotate, causing the transmission mechanism to rotate. The magnet rotates along with the transmission mechanism. The chip is positioned corresponding to the magnet, allowing the first position switch to move with the transmission mechanism. The adjusting screw is rotatably mounted on the housing and connected to the first position switch. The chip and the first position switch are electrically connected to the control board. Thus, while the drive unit drives the transmission shaft to rotate the transmission mechanism, the magnet rotates along with the transmission mechanism. Stroke information is obtained in real-time through the induction between the magnet and the chip, enabling stroke adjustment via main control. Furthermore, the adjusting screw can be manually rotated, and the first position switch senses the rotation stroke of the screw, feeding this information back to the control board. The control board records and analyzes this information for stroke adjustment via main control, achieving manual fine-tuning. This design enables stroke adjustment to meet users' needs for different strokes.

[0049] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An adjustable stroke drive mechanism, characterized by: Includes a drive unit, a transmission shaft, and a stroke adjustment mechanism; The stroke adjustment mechanism includes a housing and a transmission mechanism, a control board, a chip, a magnet, a first position switch, and an adjusting screw mounted on the housing. The drive unit drives the transmission shaft to rotate, thereby driving the transmission mechanism to rotate. The magnet rotates with the rotation of the transmission mechanism. The chip is positioned corresponding to the magnet and is used to sense the magnet. The first position switch moves with the rotation of the transmission mechanism. The adjusting screw is rotatably mounted on the housing. One end of the adjusting screw protrudes outside the housing, and the other end extends into the housing and connects to the first position switch. The chip and the first position switch are electrically connected to the control board.

2. The adjustable stroke drive mechanism of claim 1, wherein: The first position switch is connected to the transmission mechanism via a moving block. A second position switch is provided inside the housing. The second position switch is located on the side of the moving block away from the adjusting screw. The second position switch is electrically connected to the control board.

3. The adjustable stroke drive mechanism of claim 2, wherein: The transmission mechanism includes a transmission gear and a linkage gear that mesh with each other. The transmission gear is sleeved on the transmission shaft. The magnet is mounted on one end face of the linkage gear. The moving block is movably mounted on the other end face of the linkage gear by a linkage screw. One end of the linkage screw is connected to the other end face of the linkage gear. The axes of the magnet, the linkage gear, and the linkage screw coincide.

4. The adjustable stroke drive mechanism of claim 1, wherein: The stroke adjustment mechanism also includes a connector, one end of which extends into the housing and is electrically connected to the control board.

5. The adjustable stroke drive mechanism of claim 1, wherein: The drive unit is a drive motor.

6. The adjustable stroke drive mechanism of claim 1, wherein: One end of the drive unit is provided with a fixed base, one end of the drive shaft passes through the fixed base, the fixed base is provided with a plurality of fixing holes, and the housing is connected to the fixing holes by fixing screws.

7. The adjustable stroke drive mechanism of claim 3, wherein: The housing includes a first base shell, a middle plate, a second base shell, and an end cap. The first base shell and the end cap are respectively fastened to the two sides of the second base shell by first screws. The first base shell and the second base shell form an installation cavity. The middle plate, control board, chip, first position switch, transmission gear, linkage gear, moving block, second position switch, and linkage screw are all located in the installation cavity. The middle plate is fastened to the first base shell by second screws. The control board is installed on the side of the middle plate facing the first base shell. The chip is installed on the side of the control board facing the middle plate. The first position switch, transmission gear, linkage gear, moving block, second position switch, and linkage screw are all located on the side of the middle plate away from the first base shell.

8. The adjustable stroke drive mechanism of claim 7, wherein: A clearance cavity is formed between the end cap and the second base shell. The clearance cavity is connected to the mounting cavity. The movable block can move within the clearance cavity. The adjusting screw is rotatably mounted on the end cap. One end of the adjusting screw protrudes outside the end cap, and the other end extends into the clearance cavity. The other end of the linkage screw extends into the clearance cavity and is constrained by the inner wall of the end cap.

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