Transmission structure of door opener

Abstract

The utility model relates to the technical field of transmission structures, and discloses a transmission structure of a door opener, which comprises a shell, a rotating shaft and a transmission component, a stepless wheel body is arranged in the shell, the transmission component is arranged in the shell, the rotating shaft is fixedly connected in the shell, a support is rotatably connected outside the rotating shaft, and the stepless wheel body and the transmission component are arranged in the shell. The side, close to the stepless wheel body, of the support is fixedly connected with two sets of stepless wheel limiting blocks, and the support rotates outside the rotating shaft to drive the stepless wheel limiting blocks to be away from the stepless wheel body. The stepless wheel limiting blocks are driven by the supports on the two sides to be away from or close to the stepless wheel body, so that fixation and unfixation of the stepless wheel body are achieved, driving modes can be replaced at any angle of the door plate body, the driving mode conversion efficiency of the door plate body is improved, and the using effect of the door plate body is improved; and the fixation by aligning the corresponding clamping grooves is not needed.

Description

Technical Field

[0001] This utility model relates to the field of transmission structure technology, and in particular to the transmission structure of a door opener. Background Technology

[0002] With the improvement of people's living standards, various intelligent gates are installed in everything from rural private houses to urban garden villas, residential communities, and enterprises. These gates are driven by gate openers to achieve intelligent opening and closing tasks. When using gate openers, a reduction gear mechanism is generally used for transmission.

[0003] According to the patent application published on the internet (authorization announcement number: CN 221503033U), "This utility model discloses a door opener reduction transmission structure, relating to the field of door opener technology. It improves upon the existing door openers, which typically utilize a reduction mechanism for transmission during use. However, when manually pushing the door during a power outage, the reduction mechanism increases the pushing force on the door panel, thus affecting normal use."

[0004] The device includes a housing, with a mounting base rotatably connected to its top. A door panel is mounted on top of the mounting base. Two support seats are fixedly mounted on the inner bottom wall of the housing, and a common base plate is fixedly mounted on top of the two support seats. A mounting plate is rotatably connected to the top of the base plate, and a reduction gear mechanism is provided on the mounting plate. The reduction gear mechanism is drively connected to the mounting base. This invention is simple to operate and convenient to use, facilitating the reduction gear transmission of the door opener. Furthermore, it allows the door panel to be pushed normally even during a power outage, making it convenient for regular use.

[0005] Regarding the above description, the applicant believes the following issues exist:

[0006] In use, this utility model fixes the mounting plate by engaging the locking rod in the corresponding slot. However, because the mounting plate is fixed by the slot, when changing the drive mode, the mounting plate can only be fixed by positioning the locking rod in the corresponding slot. This prevents the drive mode from being changed at any angle, reducing the efficiency of the door panel drive mode conversion and the effectiveness of the door panel. Therefore, it is necessary to improve the transmission structure of the door opener to solve the above problems. Utility Model Content

[0007] To overcome the problem that fixing the mounting plate by engaging the lever in the corresponding slot results in the only way to fix the mounting plate when changing the drive mode, thus reducing the usability of the door panel.

[0008] The technical solution of this utility model is as follows: the transmission structure of the door opener includes a housing, a rotating shaft and a transmission assembly. The housing contains a continuously variable wheel body and a transmission assembly. The rotating shaft is fixedly connected inside the housing. A bracket is rotatably connected to the outside of the rotating shaft. A continuously variable wheel limiting block is fixedly connected to the side of the bracket near the continuously variable wheel body. The bracket rotates outside the rotating shaft, causing the continuously variable wheel limiting block to move away from the continuously variable wheel body.

[0009] Preferably, two sets of limit blocks are provided for the endless wheel, and the two sets of limit blocks are symmetrically distributed on the outside of the endless wheel body.

[0010] Preferably, a semicircular block is fixedly connected to the right end of the housing, a bidirectional threaded rod is rotatably connected inside the semicircular block, a knob is fixedly connected to the rear end of the bidirectional threaded rod, a sliding block is threadedly connected to the outside of the bidirectional threaded rod, the sliding block is located inside the bracket, a short shaft is fixedly connected to the top of the sliding block, the short shaft is slidably connected inside the bracket, and a limit plate is fixedly connected to the top of the short shaft.

[0011] Preferably, the bracket has a groove at the corresponding position of the short shaft, and the short shaft slides in the groove.

[0012] Preferably, the bracket has a groove at the corresponding position of the sliding block, and the sliding block is set in the groove.

[0013] Preferably, the transmission assembly includes a motor, which is fixedly connected inside the housing. A worm gear is fixedly connected to the output end of the motor. A support base is fixedly connected inside the housing. The worm gear is rotatably connected inside the support base. A worm wheel meshes with the outside of the worm gear. A first optical shaft is fixedly connected inside the worm wheel. A base plate is fixedly connected to the top of the support base. The first optical shaft is rotatably connected inside the base plate. A continuously variable wheel body is disposed outside the first optical shaft. A pinion is fixedly connected to the outside of the first optical shaft. A large gear meshes with the outside of the pinion. A second optical shaft is fixedly connected inside the large gear. The second optical shaft is rotatably connected inside the continuously variable wheel body. A transmission gear is fixedly connected to the outside of the second optical shaft. An external gear ring meshes with the outside of the transmission gear. A mounting base is fixedly connected inside the external gear ring. The mounting base is rotatably connected inside the housing. A door panel body is fixedly connected to the top of the mounting base.

[0014] Preferably, two support seats are provided, which are symmetrically distributed at the left and right ends of the worm.

[0015] The beneficial effects of this utility model are as follows: Compared to fixing the mounting plate by engaging the locking rod in the corresponding slot, the brackets on both sides move the limit block of the infinite wheel away from or towards the infinite wheel body, thereby achieving the fixing and unfixing of the infinite wheel body. This allows the drive mode to be changed at any angle of the door panel body, improving the drive mode switching efficiency of the door panel body and enhancing its usability. It eliminates the need for fixing by aligning the locking rod with the corresponding slot, avoiding the problem of having to fix the mounting plate only by aligning the locking rod with the slot when changing the drive mode, which reduces the usability of the door panel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the shell structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the transmission component structure of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the shell structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the bidirectional threaded rod structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Housing; 21. Semicircular block; 22. Bidirectional threaded rod; 23. Knob; 24. Sliding block; 25. Short shaft; 26. Limiting plate; 27. Rotating shaft; 28. Bracket; 29. ​​Continuous wheel limiting block; 31. Motor; 32. Support base; 33. Worm; 34. Worm wheel; 35. First optical axis; 36. Base plate; 37. Small gear; 38. Large gear; 39. Second optical axis; 310. Transmission gear; 311. External gear ring; 312. Mounting base; 313. Door panel body; 4. Continuous wheel body. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1 - Figure 5This utility model provides an embodiment of a door opener's transmission structure, including a housing 1, a rotating shaft 27, and a transmission assembly. A continuously variable wheel body 4 is disposed inside the housing 1, and the transmission assembly is also disposed inside the housing 1. The rotating shaft 27 is fixedly connected inside the housing 1, and a bracket 28 is rotatably connected to the outside of the rotating shaft 27. A continuously variable wheel limiting block 29 is fixedly connected to the side of the bracket 28 near the continuously variable wheel body 4. The bracket 28 rotates outside the rotating shaft 27, causing it to move the continuously variable wheel limiting block 29 away from the continuously variable wheel body 4. The brackets 28 on both sides move the continuously variable wheel limiting blocks 29 away from or closer to the continuously variable wheel body 4, thereby achieving the control of the continuously variable wheel body 4. The fixing and unfixing of the mechanism allows the drive mode to be changed at any angle of the door panel body 313. The transmission component is driven by the meshing of the worm gear 33 and the worm wheel 34, the meshing of the pinion 37 and the gear 38, and the meshing of the transmission gear 310 and the external gear ring 311. This allows the second optical shaft 39 to rotate inside the infinite wheel body 4 in a fixed state, and reduces the driving torque. Two sets of infinite wheel limit blocks 29 are provided, which are symmetrically distributed on the outside of the infinite wheel body 4. The infinite wheel body 4 is limited clockwise and counterclockwise by the infinite wheel limit blocks 29 on both sides, and is fixed to improve its stability.

[0024] Please see Figure 4 - Figure 5 In this embodiment, a semicircular block 21 is fixedly connected to the right end of the housing 1. A bidirectional threaded rod 22 is rotatably connected inside the semicircular block 21. A knob 23 is fixedly connected to the rear end of the bidirectional threaded rod 22. A sliding block 24 is threadedly connected to the outside of the bidirectional threaded rod 22. The sliding block 24 is disposed inside the bracket 28. A short shaft 25 is fixedly connected to the top of the sliding block 24. The short shaft 25 is slidably connected inside the bracket 28. A limiting plate 26 is fixedly connected to the top of the short shaft 25, so that it drives the infinite wheel limiting block 29 away from or near the infinite wheel body 4 through the brackets 28 on both sides, thereby realizing the fixing and unfixing of the infinite wheel body 4, so that it can be held in hand. When switching between the manual and electric drive modes, the electric and manual modes can be switched at any angle on the door panel body 313, improving the efficiency of the drive mode conversion of the door panel body 313 and enhancing its usability. It eliminates the need for alignment with corresponding slots for fixation. The bracket 28 has a slot at the corresponding position of the short shaft 25, allowing the short shaft 25 to slide within the slot, thus limiting its movement and improving stability. The bracket 28 also has a slot at the corresponding position of the sliding block 24, with the sliding block 24 positioned within the slot. This ensures that when the angles of the brackets 28 on both sides are adjusted, the brackets 28 do not affect the sliding block 24, improving practicality.

[0025] Please see Figure 2 - Figure 3In this embodiment, the transmission assembly includes a motor 31, which is fixedly connected inside the housing 1. A worm gear 33 is fixedly connected to the output end of the motor 31. A support base 32 is fixedly connected inside the housing 1. The worm gear 33 is rotatably connected inside the support base 32. A worm wheel 34 meshes with the outside of the worm gear 33. A first optical axis 35 is fixedly connected inside the worm wheel 34. A base plate 36 is fixedly connected to the top of the support base 32. The first optical axis 35 is rotatably connected inside the base plate 36. A continuously variable wheel body 4 is disposed outside the first optical axis 35. A small gear 37 is fixedly connected to the outside of the first optical axis 35. A large gear 38 meshes with the outside of the small gear 37. A second optical axis 39 is fixedly connected inside the large gear 38. The second optical axis 39 is rotatably connected inside the continuously variable wheel body 4. The second optical shaft 39 is externally fixedly connected to a transmission gear 310, which is externally meshed with an external gear ring 311. An internal mounting base 312 is fixedly connected to the external gear ring 311. The mounting base 312 is rotatably connected to the inside of the housing 1. A door panel body 313 is fixedly connected to the top of the mounting base 312. Through the mutual meshing of the worm 33 and the worm wheel 34, and the mutual meshing of the pinion 37 and the gear 38, and the mutual meshing of the transmission gear 310 and the external gear ring 311, the second optical shaft 39 can be driven to rotate inside the infinitely variable wheel body 4 in a fixed state, and the driving torque can be reduced. Two support bases 32 are provided, which are symmetrically distributed on the left and right ends of the worm 33 to improve the stability of the worm 33 during rotation.

[0026] During operation, the motor 31 is started, and its output shaft drives the worm gear 33 to rotate inside the support base 32. The worm gear 33 meshes with the first optical shaft 35, causing the first optical shaft 35 to rotate inside the base plate 36. The rotating first optical shaft 35, through the meshing of the small gear 37 and the large gear 38, drives the second optical shaft 39 to rotate inside the infinitely variable wheel body 4. The diameter difference between the small gear 37 and the large gear 38 reduces the transmission force. The rotating second optical shaft 39, through the meshing of the transmission gear 310 and the external gear ring 311, drives the mounting base 312 to rotate inside the housing 1, thereby rotating the door panel body 313. When the door is manually pushed, the knob 23 is turned, causing the bidirectional threaded rod 22 to rotate inside the semicircular block 21. The sliding blocks 24 on both sides of the bidirectional threaded rod 22 are threaded to its exterior, causing the two sliding blocks 24 to move synchronously in opposite directions. Shaft 25 is slidably connected inside bracket 28, causing bracket 28 to rotate around rotating shaft 27 via the positions of two sliding blocks 24. This drives two sets of infinite wheel limit blocks 29 away from infinite wheel body 4, thus disconnecting the transmission between the sliding blocks 24 of the first optical shaft 35. When the door panel body 313 is pushed, the door panel body 313 drives mounting base 312 to rotate inside housing 1. Mounting base 312 meshes with transmission gear 310 through external gear ring 311, thereby driving infinite wheel body 4 to rotate via second optical shaft 39. This, in turn, drives second optical shaft 39 to rotate planetarily, causing large gear 38 to rotate around small gear 37. This prevents the first optical shaft 35 from rotating, thus not increasing the transmission force. When the motor 31 is needed for transmission, the infinite wheel limit blocks 29 on both sides are brought closer to infinite wheel body 4, causing it to abut against it. The infinite wheel limit blocks 29 on both sides limit the infinite wheel body 4 clockwise and counterclockwise, thus fixing it.

[0027] Through the above steps, the brackets 28 on both sides drive the infinite wheel limit block 29 away from or near the infinite wheel body 4, thereby fixing and releasing the infinite wheel body 4, so that it can change the driving mode at any angle of the door panel body 313, improving the driving mode conversion efficiency of the door panel body 313 and improving the use effect of the door panel body 313. This solves the problem that when changing the driving mode, the mounting plate can only be fixed by the corresponding position of the latch rod to the slot, which reduces the use effect of the door panel.

Claims

1. A transmission structure for a door opener, comprising a housing (1), characterized in that: It also includes a rotating shaft (27) and a transmission assembly. The inside of the housing (1) is provided with a continuously variable wheel body (4) and a transmission assembly. The rotating shaft (27) is fixedly connected inside the housing (1). A bracket (28) is rotatably connected to the outside of the rotating shaft (27). A continuously variable wheel limiting block (29) is fixedly connected to the side of the bracket (28) near the continuously variable wheel body (4). The bracket (28) rotates outside the rotating shaft (27) to drive the continuously variable wheel limiting block (29) away from the continuously variable wheel body (4).

2. The transmission structure of the door opener according to claim 1, characterized in that: Two sets of limit blocks (29) are provided for the infinite wheel, and the two sets of limit blocks (29) are symmetrically distributed on the outside of the infinite wheel body (4).

3. The transmission structure of the door opener according to claim 1, characterized in that: A semicircular block (21) is fixedly connected to the right end of the housing (1). A two-way threaded rod (22) is rotatably connected inside the semicircular block (21). A knob (23) is fixedly connected to the rear end of the two-way threaded rod (22). A sliding block (24) is threadedly connected to the outside of the two-way threaded rod (22). The sliding block (24) is located inside the bracket (28). A short shaft (25) is fixedly connected to the top of the sliding block (24). The short shaft (25) is slidably connected inside the bracket (28). A limit plate (26) is fixedly connected to the top of the short shaft (25).

4. The transmission structure of the door opener according to claim 3, characterized in that: The bracket (28) has a groove at the corresponding position of the short shaft (25), and the short shaft (25) slides in the groove.

5. The transmission structure of the door opener according to claim 3, characterized in that: The bracket (28) has a groove at the corresponding position of the sliding block (24), and the sliding block (24) is set in the groove.

6. The transmission structure of the door opener according to claim 1, characterized in that: The transmission assembly includes a motor (31), which is fixedly connected inside the housing (1). A worm gear (33) is fixedly connected to the output end of the motor (31). A support base (32) is fixedly connected inside the housing (1). The worm gear (33) is rotatably connected inside the support base (32). A worm wheel (34) meshes with the outside of the worm gear (33). A first optical shaft (35) is fixedly connected inside the worm wheel (34). A base plate (36) is fixedly connected to the top of the support base (32). The first optical shaft (35) is rotatably connected inside the base plate (36). A stepless wheel body (4) is disposed outside the first optical shaft (35). (35) is externally fixedly connected to a small gear (37), which is externally meshed with a large gear (38). The large gear (38) is internally fixedly connected to a second optical shaft (39). The second optical shaft (39) is rotatably connected to the inside of the infinite wheel body (4). The second optical shaft (39) is externally fixedly connected to a transmission gear (310), which is externally meshed with an external gear ring (311). The external gear ring (311) is internally fixedly connected to a mounting base (312), which is rotatably connected to the inside of the housing (1). The top of the mounting base (312) is fixedly connected to a door panel body (313).

7. The transmission structure of the door opener according to claim 6, characterized in that: There are two support seats (32), which are symmetrically distributed on the left and right ends of the worm (33).

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