A rotating shaft assembly for an electrically driven internal rotating louver system
By designing a non-contact motor tube and lubrication structure unit, the friction loss and noise problems of the electric louver system are solved, achieving stable lubrication and quiet operation, and improving the system's reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI YUEBAI SHADING TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-26
Smart Images

Figure CN224282468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of louver technology, and more specifically, to a rotating shaft assembly of an electric internal drive rotating louver system. Background Technology
[0002] Existing electric louver systems mostly use external drive or centralized control, such as CN117345097A. The drive structure is in direct contact with the louver, relying on the mechanical transmission of the central shaft, gears, and support racks. The transmission components are in direct contact with the louver structure, resulting in high frictional resistance, easy wear, and high noise. Long-term operation can easily lead to component wear and noise accumulation due to friction.
[0003] Therefore, a new type of rotating shaft assembly for a rotating louver system with built-in drive, noise reduction, and wear reduction is needed. Utility Model Content
[0004] In view of this, in order to solve the above problems, this utility model proposes a rotating shaft assembly for an electric internal drive rotating louver system. Through a non-contact motor tube 41 and a stationary lubrication structure unit 42 design, the motor tube 41 is built into the circular tube 21 but does not directly contact it, avoiding friction between traditional transmission components and the louver structure, significantly reducing wear and noise. The lubrication structure unit 42 is fixed to the outer wall of the motor tube 41 and continuously contacts the inner wall of the rotating circular tube 21, providing stable lubrication and reducing dynamic friction noise. The lubrication unit uses nylon material combined with a chamfered friction surface 431, and is locked with a set screw to ensure long-term lubrication effect without frequent maintenance. This systematically solves the problems of friction loss and noise, while achieving continuous and stable lubrication, significantly improving the system's reliability and quietness.
[0005] A rotating shaft assembly for an electrically driven internally driven rotating louver system is disclosed. The system includes multiple evenly spaced rotating louver structures 1, each connected to a wall on one side at both ends. Each rotating louver structure 1 includes a louver body 2 and a drive structure 3. A circular tube 21 is located at the center of the louver body 2, and the drive structure 3 is built into the circular tube 21. Each louver body 2 is independently controlled by its corresponding built-in drive structure 3, allowing each louver body 2 to operate, open, or close independently, achieving a rotation adjustment of 0~90°. The rotating shaft assembly 4 is characterized in that it includes a motor tube 41 coaxially arranged with the circular tube 21, the motor tube 41 being built inside the circular tube 21 but not in contact with the circular tube 21, the outer wall of the motor tube 41 being provided with at least two symmetrically distributed lubrication structure units 42, the outer edge of the lubrication structure unit 42 being in contact with the inner wall of the circular tube 21, the lubrication structure unit 42 and the motor tube 41 being stationary relative to the circular tube 21, the lubrication structure unit 42 being used to provide stable lubrication to the circular tube 21 and reduce dynamic friction noise when the circular tube 21 rotates.
[0006] Furthermore, the lubrication structure unit 42 is a hollow annular structure, and its hollow shape fits the outer wall of the motor tube 41. The lubrication structure unit 42 is sleeved on the outside of the motor tube 41.
[0007] Furthermore, the lubrication structure unit 42 includes an annular gasket 43, the outer edge of which is provided with a friction surface 431, which contacts the inner wall of the circular tube 21.
[0008] Furthermore, the friction surface 431 has chamfers 432 on both sides to reduce frictional resistance.
[0009] In some embodiments, the width of the friction surface 431 is 0.5~5mm, and the chamfer angle 432 is 30°~45°, in order to further reduce rotational resistance.
[0010] Furthermore, the annular gasket 43 is made of plastic or nylon, preferably nylon, which has good weather resistance and is not easily oxidized.
[0011] Furthermore, the annular gasket 43 is provided with symmetrical set screw holes 433. One end of the set screw hole 433 is located on the outer edge of the annular gasket 43, and the other end is located on the inner wall of its hollow annular structure. It is used to lock the annular gasket 43 with the motor tube 41 through the set screw, so as to ensure the lubrication effect of long-term operation and eliminate the need for frequent maintenance.
[0012] Furthermore, the annular gasket 43 is also provided with a microcapsule oil storage layer 434 inside, and the rupture pressure of the microcapsule oil storage layer 434 is 0.5-1.2 MPa.
[0013] Furthermore, the drive structure 3 includes a motor 31, a motor pusher 32, and a reducer. The motor 31 is located inside the motor tube 41. The motor 31 is connected to the motor pusher 32 through the reducer. One end of the inner wall of the round tube 21 is provided with a slot 22. The end of the motor pusher 32 away from the motor 31 is inserted into the slot 22, so that when the motor 31 drives the motor pusher 32 to move, the motor pusher 32 can cooperate with the slot 22 to drive the louver body 2 to rotate.
[0014] The beneficial effects of this utility model are as follows: This utility model proposes a rotating shaft assembly for an electric internal drive rotating louver system. Through a non-contact motor tube 41 and a stationary lubrication structure unit 42 design, the motor tube 41 is built into the circular tube 21 but does not directly contact it, avoiding friction between traditional transmission components and the louver structure, significantly reducing wear and noise. The lubrication structure unit 42 is fixed to the outer wall of the motor tube 41 and continuously contacts the inner wall of the rotating circular tube 21, providing stable lubrication and reducing dynamic friction noise. The lubrication unit uses nylon material combined with a chamfered friction surface 431, locked by a set screw, ensuring long-term lubrication without frequent maintenance. This systematically solves the problems of friction loss and noise, while achieving continuous and stable lubrication, significantly improving the system's reliability and quietness. Attached Figure Description
[0015] Figure 1 This is an overall structural diagram of the rotating louver system of this utility model.
[0016] Figure 2 This is a structural diagram of a single rotating louver of this utility model.
[0017] Figure 3 This is a structural diagram of the louver body of this utility model.
[0018] Figure 4 This is an enlarged view of part A of this utility model.
[0019] Figure 5 This is a connection diagram of the motor tube and lubrication structure unit of this utility model.
[0020] Figure 6 This is a cross-sectional view of the motor tube and lubrication structure unit of this utility model.
[0021] Figure 7 This is a structural diagram of the lubrication structure unit of this utility model.
[0022] Explanation of key component symbols:
[0023] Rotating louver structure 1, louver body 2, round tube 21, slot 22, drive structure 3, motor 31, motor push head 32, rotating shaft assembly 4, motor tube 41, lubrication structure unit 42, annular gasket 43, friction surface 431, chamfer 432, set screw hole 433, microcapsule oil storage layer 434.
[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation Example 1:
[0025] A rotating shaft assembly for an electrically driven internally driven rotating louver system is disclosed. The system includes multiple evenly spaced rotating louver structures 1, each connected to a wall on one side at both ends. Each rotating louver structure 1 includes a louver body 2 and a drive structure 3. A circular tube 21 is located at the center of the louver body 2, and the drive structure 3 is built into the circular tube 21. Each louver body 2 is independently controlled by its corresponding built-in drive structure 3, allowing each louver body 2 to operate, open, or close independently, achieving a rotation adjustment of 0~90°. The rotating shaft assembly 4 is characterized in that it includes a motor tube 41 coaxially arranged with the circular tube 21, the motor tube 41 being built inside the circular tube 21 but not in contact with the circular tube 21, the outer wall of the motor tube 41 being provided with at least two symmetrically distributed lubrication structure units 42, the outer edge of the lubrication structure unit 42 being in contact with the inner wall of the circular tube 21, the lubrication structure unit 42 and the motor tube 41 being stationary relative to the circular tube 21, the lubrication structure unit 42 being used to provide stable lubrication to the circular tube 21 and reduce dynamic friction noise when the circular tube 21 rotates.
[0026] The lubrication structure unit 42 is a hollow annular structure, and its hollow shape fits the outer wall of the motor tube 41. The lubrication structure unit 42 is sleeved on the outside of the motor tube 41.
[0027] The lubrication structure unit 42 includes an annular gasket 43, the outer edge of which is provided with a friction surface 431, which contacts the inner wall of the circular tube 21.
[0028] The friction surface 431 has chamfers 432 on both sides to reduce frictional resistance.
[0029] The friction surface 431 has a width of 0.5~5mm and a chamfer angle of 30°~45° to further reduce rotational resistance.
[0030] The annular gasket 43 is made of plastic or nylon, preferably nylon, which has good weather resistance and is not easily oxidized.
[0031] The annular gasket 43 is provided with symmetrical set screw holes 433. One end of the set screw hole 433 is located on the outer edge of the annular gasket 43, and the other end is located on the inner wall of its hollow annular structure. It is used to lock the annular gasket 43 with the motor tube 41 through the set screw, so as to ensure the lubrication effect of long-term operation and eliminate the need for frequent maintenance.
[0032] The annular gasket 43 is further provided with a microcapsule oil storage layer 434 inside, and the rupture pressure of the microcapsule oil storage layer 434 is 0.5-1.2 MPa.
[0033] The drive structure 3 includes a motor 31, a motor pusher 32, and a reducer. The motor 31 is located inside the motor tube 41. The motor 31 is connected to the motor pusher 32 through the reducer. One end of the inner wall of the round tube 21 is provided with a slot 22. The end of the motor pusher 32 away from the motor 31 is inserted into the slot 22, so that when the motor 31 drives the motor pusher 32 to move, the motor pusher 32 can cooperate with the slot 22 to drive the louver body 2 to rotate.
[0034] The beneficial effects of this utility model are as follows: This utility model proposes a rotating shaft assembly for an electric internal drive rotating louver system. Through a non-contact motor tube 41 and a stationary lubrication structure unit 42 design, the motor tube 41 is built into the circular tube 21 but does not directly contact it, avoiding friction between traditional transmission components and the louver structure, significantly reducing wear and noise. The lubrication structure unit 42 is fixed to the outer wall of the motor tube 41 and continuously contacts the inner wall of the rotating circular tube 21, providing stable lubrication and reducing dynamic friction noise. The lubrication unit uses nylon material combined with a chamfered friction surface 431, locked by a set screw, ensuring long-term lubrication without frequent maintenance. This systematically solves the problems of friction loss and noise, while achieving continuous and stable lubrication, significantly improving the system's reliability and quietness.
[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A rotating shaft assembly for an electrically driven internally driven rotating louver system, the system comprising a plurality of evenly spaced rotating louver structures (1), the two ends of the rotating louver structures (1) being connected to the walls on both sides respectively, each rotating louver structure (1) comprising a louver body (2) and a drive structure (3), the center of the louver body (2) being provided with a circular tube (21), the drive structure (3) being built into the circular tube (21), each louver body (2) being independently controlled by its corresponding built-in drive structure (3), so that each louver body (2) can operate, open or close independently, achieving rotational adjustment from 0 to 90°, characterized in that: The rotating shaft assembly (4) includes a motor tube (41) coaxially arranged with the circular tube (21). The motor tube (41) is built inside the circular tube (21) but does not contact the circular tube (21). The outer wall of the motor tube (41) is provided with at least two symmetrically distributed lubrication structure units (42). The outer edge of the lubrication structure unit (42) contacts the inner wall of the circular tube (21). The lubrication structure unit (42) and the motor tube (41) are both stationary relative to the circular tube (21). The lubrication structure unit (42) is used to provide stable lubrication to the circular tube (21) and reduce dynamic friction noise when the circular tube (21) rotates.
2. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 1, characterized in that: The lubrication structure unit (42) is a hollow ring structure, and its hollow shape fits the outer wall of the motor tube (41). The lubrication structure unit (42) is sleeved on the outside of the motor tube (41).
3. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 1, characterized in that: The lubrication structure unit (42) includes an annular gasket (43), the outer edge of which is provided with a friction surface (431), and the friction surface (431) is in contact with the inner wall of the circular tube (21).
4. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 3, characterized in that: The friction surface (431) has chamfers (432) on both sides to reduce frictional resistance.
5. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 3, characterized in that: The annular gasket (43) is made of plastic or nylon, preferably nylon, which has good weather resistance and is not easily oxidized.
6. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 3, characterized in that: The annular gasket (43) is provided with symmetrical set screw holes (433). One end of the set screw hole (433) is located on the outer edge of the annular gasket (43), and the other end is located on the inner wall of its hollow annular structure. It is used to lock the annular gasket (43) and the motor tube (41) through the set screw, so as to ensure the lubrication effect of long-term operation and eliminate the need for frequent maintenance.
7. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 3, characterized in that: The annular gasket (43) is further provided with a microcapsule oil storage layer (434), and the rupture pressure of the microcapsule oil storage layer (434) is 0.5-1.2 MPa.
8. The rotating shaft assembly of the electrically driven internal rotating louver system as described in claim 1, characterized in that: The drive structure (3) includes a motor (31), a motor pusher (32), and a reducer. The motor (31) is located inside the motor tube (41). The motor (31) is connected to the motor pusher (32) through the reducer. One end of the inner wall of the round tube (21) is provided with a slot (22). The end of the motor pusher (32) away from the motor (31) is inserted into the slot (22), so that when the motor (31) drives the motor pusher (32) to move, the motor pusher (32) can cooperate with the slot (22) to drive the louver body (2) to rotate.