Sliding door driving device

Abstract

The utility model provides a sliding door driving device which comprises a shell, a driving rod rotationally arranged in the shell in the horizontal direction, a driving gear coaxially and fixedly arranged at one end of the driving rod, a driving motor fixedly arranged in the shell, and a driving gear coaxially and fixedly arranged on an output shaft of the driving motor in a sleeved mode. A transmission rod is rotationally arranged in the shell in the vertical direction, a transmission gear is coaxially and fixedly arranged on the top of the transmission rod in a sleeving mode, the driving gear is meshed with the transmission gear, a worm is coaxially and fixedly arranged on the transmission rod in a sleeving mode, a worm gear is coaxially arranged on the driving rod, and the worm is meshed with the worm gear. According to the utility model, the translation opening and closing effect of the heavy-weight door can be effectively improved, the energy consumption is reduced, and the reliability in the actual use process is improved.

Description

Technical Field

[0001] This utility model relates to the field of building door control system technology, and more specifically, to a sliding door drive device. Background Technology

[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.

[0003] With the popularization of electrification, automatic doors began to appear, initially mainly used in industrial environments such as warehouses and factories to improve logistics efficiency and security. Over time, automatic door technology has gradually matured, and sliding door drive devices have also begun to be used in commercial buildings. Modern sliding door drive devices are usually equipped with various control systems, such as remote control operation, sensors, timers, and safety sensors, to ensure the safe and reliable operation of the door. At present, sliding door drive devices are widely used in various building types, not limited to commercial and industrial fields, but also including residential and public facilities.

[0004] In the current usage environment, the sliding drive device for heavy doors usually requires a high-power motor as the drive source. However, high-power motors generate significant heat, thus requiring a larger volume to cope with the heat generated during motor operation. This results in the sliding door drive device being too large, which to some extent affects the appearance and actual use of the drive device. At the same time, it makes the sliding door drive device more prone to malfunctions during actual use. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a sliding door drive device that can effectively improve the sliding opening and closing effect of heavy doors, reduce energy consumption, and improve reliability in actual use.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A sliding door drive device includes a housing, a drive rod rotatably mounted horizontally inside the housing, a drive gear coaxially fixed at one end of the drive rod, a drive motor fixedly mounted inside the housing, a drive gear coaxially fixedly mounted on the output shaft of the drive motor, a transmission rod rotatably mounted vertically inside the housing, a transmission gear coaxially fixedly mounted on the top of the transmission rod, the drive gear and the transmission gear meshing, a worm gear coaxially fixedly mounted on the transmission rod, and a worm wheel coaxially mounted on the drive rod, the worm gear meshing with the worm wheel.

[0008] In some possible embodiments, a mounting plate is coaxially rotatably sleeved on the drive rod, and a slot is provided on the mounting plate. A through hole is provided along the axis of the worm gear, and a locking block is fixedly provided on the inner wall of the through hole. The locking block is engaged with the slot. A limiting member is provided on the drive rod to limit the deflection angle of the mounting plate on the drive rod.

[0009] In some possible embodiments, a mounting hole is provided at the end of the drive rod away from the drive gear along the axial direction of the drive rod. The limiting member is set as a limiting rod. A strip-shaped hole is provided on the drive rod along the axial direction of the drive rod. The strip-shaped hole is connected to the mounting hole. The limiting member is slidably disposed in the strip-shaped hole, and one end of the limiting member extends out of the strip-shaped hole. A limiting groove is provided on the mounting plate for the end of the limiting member to be engaged. A driving member is provided on the drive rod. The driving member is used to drive the limiting member to move within the strip-shaped hole.

[0010] In some possible embodiments, the driving member is configured as a push rod, the mounting hole is open at one end away from the driving gear, the driving member is slidably disposed in the mounting hole along the axial direction of the driving rod, one end of the driving member abuts against the side wall of the limiting member, and the other end extends out of the mounting hole, an elastic member is disposed in the mounting hole, the elastic member is used to drive the limiting member to move toward the limiting groove, and a positioning part is disposed on the driving member, the positioning part is used to limit the position of the driving member in the mounting hole.

[0011] In some possible embodiments, the positioning part is configured as a positioning screw, with an external thread on the outer circumferential surface of the positioning screw and an internal thread adapted to the external thread on the inner wall of the mounting hole.

[0012] In some possible embodiments, a transmission part is fixedly provided at the end of the drive member away from the drive gear, and the cross-section of the transmission part is set as a polygon.

[0013] In some possible embodiments, two strip holes are provided, and the two strip holes are symmetrically arranged along the axis of the drive rod. The two ends of the limiting member are respectively slidably disposed in the two strip holes. Multiple limiting grooves are provided on the mounting plate, and the multiple limiting grooves are evenly opened along the circumference of the drive rod.

[0014] In some possible embodiments, a receiving groove is provided on the side wall of the mounting plate near the drive gear, and a limiting groove is provided on the bottom wall of the receiving groove. A sealing plate is provided on the mounting plate, and the sealing plate covers the opening of the receiving groove. The sealing plate is rotatably connected to the drive rod, and the side of the limiting member away from the mounting plate is used to abut against the side of the sealing plate away from the drive gear.

[0015] In some possible embodiments, a mounting portion is fixedly provided on the outer wall of the housing, and a through hole is provided on the mounting portion for the drive rod to pass through. Two arc-shaped guard plates are provided on the mounting portion, symmetrically arranged along the axial direction of the drive rod, with their concave surfaces facing each other. The drive gear is disposed between the two arc-shaped guard plates.

[0016] In summary, the technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0017] 1. In actual use, when the sliding door needs to be moved, the drive motor is started. The drive motor drives the drive gear to rotate, the drive gear drives the driven gear to rotate, the driven gear drives the transmission rod to rotate, the transmission rod drives the worm gear to rotate, the worm gear drives the worm wheel meshing with it to rotate, and then drives the drive rod to rotate. As the drive rod rotates, it drives the drive gear to rotate, and the drive gear drives the rack connected to the sliding door to move, thus achieving the purpose of moving the sliding door. By adding worm gear transmission, the movement of the sliding door has a self-locking effect, and the torque when the drive rod rotates is also effectively increased. This allows the drive motor to move the heavy sliding door with less power, effectively improving the sliding opening and closing effect of heavy sliding doors, reducing energy consumption, and improving reliability during use.

[0018] 2. When the sliding door is deflected, the deflection angle of the mounting plate on the drive rod is limited by the limiting component, so that the drive rod and the mounting plate rotate synchronously. When the worm gear deflects under the drive of the worm, the mounting plate can be deflected by the interlocking blocks and slots, thereby achieving the purpose of driving the drive rod to rotate. When the motor fails, the limitation of the deflection angle of the mounting plate on the drive rod by the limiting component is released. At this time, even if the worm gear cannot rotate, it can still drive the drive rod to rotate, thereby achieving the effect of driving the drive gear to rotate and opening the sliding door, further improving the reliability of the device in actual use.

[0019] 3. When it is necessary to release the limiting member, the driving member moves the limiting member toward the mounting plate, causing the limiting member to disengage from the limiting groove. At this time, the limiting member can release the angle limitation between the driving rod and the mounting plate. The mounting plate can then rotate relative to the driving rod. Subsequently, the positioning part limits the position of the driving member in the mounting hole. This ensures that the limiting member will not fall back into the limiting groove during subsequent use, further improving the practicality of the device.

[0020] 4. When the driving component pushes the limiting component away from the limiting groove, the sealing plate can limit the movement distance of the limiting component. When one side of the limiting component abuts against one side of the sealing plate, the driving component can no longer move within the mounting hole, making the overall operation simpler and more convenient, and making it easier for the staff to judge the movement distance of the limiting component. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the shell according to an embodiment of the present utility model;

[0023] Figure 3 for Figure 2 Enlarged view of part A in the image;

[0024] Figure 4 This is an exploded structural diagram of the worm gear according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the drive rod structure according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the arc-shaped guard plate according to an embodiment of the present utility model.

[0027] Icons: 1. Housing; 11. Drive rod; 12. Drive gear; 13. Drive motor; 14. Drive gear; 15. Transmission rod; 16. Transmission gear; 17. Worm; 18. Worm wheel; 2. Mounting plate; 21. Slot; 22. Through hole; 23. Locking block; 24. Limiting component; 3. Mounting hole; 31. Strip hole; 32. Limiting groove; 33. Drive component; 34. Elastic component; 35. Positioning part; 36. External thread; 37. Internal thread; 4. Transmission part; 5. Receiving groove; 51. Sealing plate; 6. Mounting part; 61. Through hole; 62. Arc-shaped guard plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] The following is for reference Figures 1 to 6 The present invention will be described in further detail below.

[0030] Reference Figure 1 and Figure 2A sliding door drive device includes a housing 1, a drive rod 11 rotatably mounted horizontally inside the housing 1, a drive gear 12 coaxially fixed at one end of the drive rod 11, a drive motor 13 fixedly mounted inside the housing 1, a drive gear 14 coaxially fixedly mounted on the output shaft of the drive motor 13, a transmission rod 15 rotatably mounted vertically inside the housing 1, a transmission gear 16 coaxially fixedly mounted on the top of the transmission rod 15, the drive gear 14 and the transmission gear 16 meshing, a worm gear 17 coaxially fixedly mounted on the transmission rod 15, and a worm wheel 18 coaxially mounted on the drive rod 11, the worm gear 17 meshing with the worm wheel 18.

[0031] In one embodiment of this utility model, the drive motor 13 is configured as a brushless DC motor.

[0032] Among them, reference Figure 3 In one embodiment of this utility model, both the driving gear 14 and the transmission gear 16 are configured as helical gears. Compared with spur gear transmission, the meshing process of helical gear transmission is smoother, which can effectively reduce the impact and vibration in the gear transmission process, thereby making the gear transmission smoother and effectively improving the load-bearing capacity of the gear.

[0033] Reference Figure 4 A mounting plate 2 is coaxially rotatably mounted on the drive rod 11. A slot 21 is provided on the mounting plate 2. A through hole 22 is provided along the axis of the worm gear 18. A locking block 23 is fixedly provided on the inner wall of the through hole 22. The locking block 23 is engaged with the slot 21. A limiting member 24 is provided on the drive rod 11. The limiting member 24 is used to limit the deflection angle of the mounting plate 2 on the drive rod 11.

[0034] When the sliding door is deflected, the deflection angle of the mounting plate 2 on the drive rod 11 is limited by the limiting component 24, so that the drive rod 11 and the mounting plate 2 rotate synchronously. When the worm gear 18 deflects under the drive of the worm 17, the mounting plate 2 can be deflected by the interlocking block 23 and slot 21, thereby achieving the purpose of driving the drive rod 11 to rotate. When the motor fails, the limitation of the deflection angle of the mounting plate 2 on the drive rod 11 by the limiting component 24 is released. At this time, even if the worm gear 18 cannot rotate, it can still drive the drive rod 11 to rotate, thereby achieving the effect of driving the drive gear 12 to rotate and open the sliding door, further improving the reliability of the device in actual use.

[0035] Reference Figure 4 , 5A mounting hole 3 is provided at the end of the drive rod 11 away from the drive gear 12 along the axial direction of the drive rod 11. As one embodiment of the present invention, the limiting member 24 is set as a limiting rod. A strip hole 31 is provided on the drive rod 11 along the axial direction of the drive rod 11. The strip hole 31 is connected to the mounting hole 3. The limiting member 24 is slidably disposed in the strip hole 31, and one end of the limiting member 24 extends out of the strip hole 31. A limiting groove 32 is provided on the mounting plate 2 for the end of the limiting member 24 to be inserted. A driving member 33 is provided on the drive rod 11. The driving member 33 is used to drive the limiting member 24 to move in the strip hole 31.

[0036] As one embodiment of this utility model, refer to Figure 5 The driving member 33 is configured as a push rod, and the mounting hole 3 is open at one end away from the driving gear 12. The driving member 33 is slidably disposed in the mounting hole 3 along the axial direction of the driving rod 11. One end of the driving member 33 abuts against the side wall of the limiting member 24, and the other end extends out of the mounting hole 3. An elastic member 34 is disposed in the mounting hole 3. The elastic member 34 is used to drive the limiting member 24 to move toward the direction close to the limiting groove 32. A positioning part 35 is disposed on the driving member 33. The positioning part 35 is used to limit the position of the driving member 33 in the mounting hole 3.

[0037] Additionally, refer to Figure 5 As one embodiment of this utility model, the elastic element 34 is configured as a compression spring. One end of the elastic element 34 abuts against the inner wall of the mounting hole 3, and the other end abuts against the limiting element 24. In actual use, when the limiting element 24 is located in the limiting groove 32, the limiting element 24 tends to move towards the limiting groove 32 under the action of the elastic element 34. At the same time, it can also prevent the limiting element 24 from dislodging from the limiting groove 32 due to mechanical vibration, further improving the overall reliability of the device in actual use.

[0038] When it is necessary to release the restriction of the limiting member 24, the driving member 33 drives the limiting member 24 to move towards the mounting plate 2, so that the limiting member 24 disengages from the limiting groove 32. At this time, the limitation of the limiting member 24 on the angle between the driving rod 11 and the mounting plate 2 can be released, and the mounting plate 2 can rotate relative to the driving rod 11. Then, the positioning part 35 limits the position of the driving member 33 in the mounting hole 3. This ensures that the limiting member 24 will not fall back into the limiting groove 32 during subsequent use, further improving the practicality of the device.

[0039] Reference Figure 5The positioning part 35 is configured as a positioning screw, which is sleeved on the driving member 33. An external thread 36 is formed on the outer circumferential surface of the positioning screw, and an internal thread 37, which matches the external thread 36, is formed on the inner wall of the mounting hole 3. When the limiting member 24 is pushed away from the limiting groove 32, the driving member 33 is rotated, causing the external thread 36 on the positioning screw to engage with the internal thread 37 on the inner wall of the mounting hole 3. This limits the position of the driving member 33 within the mounting hole 3 and prevents the limiting member 24 from falling back into the limiting groove 32.

[0040] Reference Figure 5 A transmission part 4 is fixedly provided at the end of the driving member 33 away from the driving gear 12. The cross-section of the transmission part 4 is set as a polygon. As one embodiment of the present invention, the transmission part 4 is set as a triangle. As other possible embodiments of the present invention, the transmission part 4 can also be set as a rectangle, pentagon or other non-circular polygon.

[0041] Reference Figure 4 Two strip holes 31 are provided, and the two strip holes 31 are symmetrically arranged along the axis of the drive rod 11. The two ends of the limiting member 24 are respectively slidably arranged in the two strip holes 31. Multiple limiting grooves 32 are provided on the mounting plate 2, and the multiple limiting grooves 32 are evenly opened along the circumference of the drive rod 11.

[0042] As one embodiment of this utility model, refer to Figure 4 A receiving groove 5 is provided on the side wall of the mounting plate 2 near the drive gear 12, and a limiting groove 32 is provided on the bottom wall of the receiving groove 5. A sealing plate 51 is provided on the mounting plate 2, covering the opening of the receiving groove 5. The sealing plate 51 is rotatably connected to the drive rod 11. The side of the limiting member 24 away from the mounting plate 2 is used to abut against the side of the sealing plate 51 away from the drive gear 12. When the drive member 33 pushes the limiting member 24 away from the limiting groove 32, the sealing plate 51 can limit the movement distance of the limiting member 24. When one side of the limiting member 24 abuts against one side of the sealing plate 51, the drive member 33 can no longer move within the mounting hole 3, making the overall operation simpler and more convenient, and making it easier for the operator to judge the movement distance of the limiting member 24.

[0043] Reference Figure 1 , 6 An installation part 6 is fixedly provided on the outer wall of the housing 1. A through hole 61 is provided on the installation part 6 for the drive rod 11 to pass through. An arc-shaped guard plate 62 is provided on the installation part 6. There are two arc-shaped guard plates 62. The two arc-shaped guard plates 62 are symmetrically arranged along the axis of the drive rod 11. The concave surfaces of the two arc-shaped guard plates 62 are arranged opposite each other. The drive gear 12 is located between the two arc-shaped guard plates 62.

[0044] The implementation principle of the sliding door driving device proposed in this embodiment is as follows:

[0045] In actual use, when the sliding door needs to be moved, the drive motor 13 is started. The drive motor 13 drives the drive gear 14 to rotate, the drive gear 14 drives the driven gear to rotate, the driven gear drives the transmission rod 15 to rotate, the transmission rod 15 drives the worm gear 17 to rotate, the worm gear 17 drives the worm wheel 18 meshing with it to rotate, and then drives the drive rod 11 to rotate. As the drive rod 11 rotates, it drives the drive gear 12 to rotate, and the drive gear 12 drives the rack connected to the sliding door to move, thereby achieving the purpose of moving the sliding door. By adding the transmission of worm wheel 18 and worm gear 17, the movement of the sliding door has a self-locking effect, and the torque when the drive rod 11 rotates is also effectively increased. This allows the drive motor 13 to move the heavy sliding door with less power, effectively improving the sliding opening and closing effect of the heavy sliding door, reducing energy consumption, and improving the reliability during use.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sliding door drive device, comprising a housing (1), characterized in that: A drive rod (11) is rotatably mounted in the horizontal direction inside the housing (1). A drive gear (12) is coaxially fixed at one end of the drive rod (11). A drive motor (13) is fixedly mounted inside the housing (1). A drive gear (14) is coaxially fixedly mounted on the output shaft of the drive motor (13). A transmission rod (15) is rotatably mounted in the vertical direction inside the housing (1). A transmission gear (16) is coaxially fixedly mounted on the top of the transmission rod (15). The drive gear (14) and the transmission gear (16) mesh. A worm (17) is coaxially fixedly mounted on the transmission rod (15). A worm wheel (18) is coaxially mounted on the drive rod (11). The worm (17) meshes with the worm wheel (18).

2. The sliding door drive device according to claim 1, characterized in that: A mounting plate (2) is coaxially rotatably mounted on the drive rod (11). A slot (21) is provided on the mounting plate (2). A through hole (22) is provided on the worm wheel (18) along the axis of the worm wheel (18). A locking block (23) is fixedly provided on the inner wall of the through hole (22). The locking block (23) is engaged with the slot (21). A limiting member (24) is provided on the drive rod (11). The limiting member (24) is used to limit the deflection angle of the mounting plate (2) on the drive rod (11).

3. A sliding door drive device according to claim 2, characterized in that: A mounting hole (3) is provided at the end of the drive rod (11) away from the drive gear (12) along the axial direction of the drive rod (11). The limiting member (24) is set as a limiting rod. A strip hole (31) is provided on the drive rod (11) along the axial direction of the drive rod (11). The strip hole (31) is connected to the mounting hole (3). The limiting member (24) is slidably disposed in the strip hole (31), and one end of the limiting member (24) extends out of the strip hole (31). A limiting groove (32) is provided on the mounting plate (2) for the end of the limiting member (24) to be inserted. A driving member (33) is provided on the drive rod (11). The driving member (33) is used to drive the limiting member (24) to move in the strip hole (31).

4. A sliding door drive device according to claim 3, characterized in that: The driving member (33) is configured as a push rod. The mounting hole (3) is opened at one end away from the driving gear (12). The driving member (33) is slidably disposed in the mounting hole (3) along the axial direction of the driving rod (11). One end of the driving member (33) abuts against the side wall of the limiting member (24), and the other end extends out of the mounting hole (3). An elastic member (34) is provided in the mounting hole (3). The elastic member (34) is used to drive the limiting member (24) to move toward the direction close to the limiting groove (32). A positioning part (35) is provided on the driving member (33). The positioning part (35) is used to limit the position of the driving member (33) in the mounting hole (3).

5. A sliding door driving device according to claim 4, characterized in that: The positioning part (35) is configured as a positioning screw, which is coaxially fixedly sleeved on the driving member (33). An external thread (36) is provided on the outer peripheral surface of the positioning screw, and an internal thread (37) adapted to the external thread (36) is provided on the inner wall of the mounting hole (3).

6. A sliding door driving device according to claim 4, characterized in that: A transmission part (4) is fixedly provided at the end of the drive member (33) away from the drive gear (12), and the cross-section of the transmission part (4) is set as a polygon.

7. A sliding door drive device according to claim 3, characterized in that: Two strip holes (31) are provided, and the two strip holes (31) are symmetrically arranged along the axis of the drive rod (11). The two ends of the limiting member (24) are respectively slidably arranged in the two strip holes (31). Multiple limiting grooves (32) are provided on the mounting plate (2), and the multiple limiting grooves (32) are evenly opened along the circumference of the drive rod (11).

8. A sliding door drive device according to claim 7, characterized in that: A receiving groove (5) is provided on the side wall of the mounting plate (2) near the drive gear (12). The limiting groove (32) is provided on the bottom wall of the receiving groove (5). A sealing plate (51) is provided on the mounting plate (2). The sealing plate (51) covers the opening of the receiving groove (5). The sealing plate (51) is rotatably connected to the drive rod (11). The side of the limiting member (24) away from the mounting plate (2) is used to abut against the side of the sealing plate (51) away from the drive gear (12).

9. A sliding door drive device according to any one of claims 1-8, characterized in that: An installation part (6) is fixedly provided on the outer wall of the housing (1). A through hole (61) for the drive rod (11) to pass through is provided on the installation part (6). An arc-shaped guard plate (62) is provided on the installation part (6). There are two arc-shaped guard plates (62). The two arc-shaped guard plates (62) are symmetrically arranged along the axis of the drive rod (11). The concave surfaces of the two arc-shaped guard plates (62) are arranged opposite to each other. The drive gear (12) is located between the two arc-shaped guard plates (62).

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