Quick-release micro motor connecting mechanism
By using a quick-release micro motor connection mechanism to transmit torque through mechanical locking and electromagnetic adsorption, the problems of long assembly time and unstable power transmission in existing technologies are solved, achieving fast and stable transmission and efficient disassembly of motor torque.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN PEAK IND LIMITED
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-07
AI Technical Summary
Existing micro motor connection mechanisms are time-consuming to assemble and disassemble, and suffer from power transmission misalignment or jamming issues, making it difficult to meet the needs of automated production.
It adopts a quick-release micro motor connection mechanism, which realizes the "one-click" quick locking and unlocking of the upper and lower covers through a mechanical locking structure. It also uses the adsorption of electromagnetic coil and magnetic plate to transmit torque, and combines bearings to ensure the stability of power transmission.
It achieves rapid and stable transmission of motor torque, meets the high-efficiency requirements of automated production, and reduces maintenance difficulty and cost.
Smart Images

Figure CN224473142U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor connection technology, and in particular to a quick-release micro motor connection mechanism. Background Technology
[0002] In micro motor applications, such as small smart devices, precision instruments, and portable electronic devices, a stable connection between the motor and the transmission system is often achieved through a connecting mechanism. Due to the need for compact and modular equipment, higher requirements are placed on the "quick-release" and "transmission stability" of the connecting mechanism—it needs to be able to lock quickly during assembly and be easy to disassemble during operation and maintenance, while ensuring no deviation and low loss during power transmission.
[0003] Existing micro motor connection mechanisms mostly adopt the "screw fastening + key pin transmission" mode: the upper and lower cover plates are fixed to the sealing plate by screws, and the motor torque is transmitted by the key pin structure. However, screw fastening requires tools, and each disassembly and assembly takes a long time, which cannot meet the fast-paced operation requirements of automated production lines. The mechanical fit between the key pin and the shaft hole is prone to wear and gaps, which can cause offset or jamming during power transmission, affecting the operating accuracy of the equipment. Disassembly requires complete disassembly of surrounding components, and the entire connection mechanism needs to be replaced after the key pin wears out, which is difficult and costly to maintain.
[0004] Therefore, a quick-release micro motor connection mechanism is proposed to address the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a quick-release micro motor connection mechanism to achieve the above objectives. It aims to improve the problem that some motors in the prior art rely on key pin structures to transmit motor torque, but screw tightening requires tools and each disassembly and assembly takes a long time.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A quick-release micro motor connection mechanism includes a sealing plate 1, a central shaft fixedly connected to the right end of the sealing plate 1, a sealing plate 2 fixedly connected to the outer right end of the central shaft, an upper cover plate slidably connected to the top of the sealing plate 1, a lower cover plate slidably connected to the bottom of the sealing plate 1, a connecting block fixedly connected to the bottom of the upper cover plate, a connecting groove adapted to the connecting block being opened at the top of the sealing plate 1, a sliding block slidably connected inside the sealing plate 1, the top end of the sliding block contacting the bottom end of the connecting block, an elastic component slidably connected inside the lower cover plate, a pressing block fixedly connected to the right end of the upper cover plate, a telescopic rod 2 fixedly connected to the left end of the pressing block, and a spring 2 sleeved on the outside of the telescopic rod 2.
[0008] As a further description of the above technical solution:
[0009] The elastic component includes a sliding block. The interior of the lower cover plate is slidably connected to the exterior of the sliding block. A telescopic rod is fixedly connected to the bottom end of the sliding block. A spring is sleeved on the exterior of the telescopic rod. One end of the spring is fixedly connected to the left end of the pressing block, and the other end of the spring is fixedly connected to the right end of the upper cover plate. The bottom end of the pressing block is in contact with the top end of the connecting block.
[0010] As a further description of the above technical solution:
[0011] The central shaft is rotatably connected to a bearing, the bearing is fixedly connected to a limiting plate, the limiting plate is fixedly connected to an electromagnetic ring, and the sealing plate is fixedly connected to a magnetic plate.
[0012] As a further description of the above technical solution:
[0013] The electromagnetic coil is in contact with the magnetic plate, and the outer side of the electromagnetic coil is in contact with the inner side of the sealing plate 2.
[0014] As a further description of the above technical solution:
[0015] The interior of the bearing is in contact with the exterior of the central shaft, and the exterior of the limiting plate is in contact with the interior of the first sealing plate and the second sealing plate.
[0016] As a further description of the above technical solution:
[0017] The bottom end of the pressing block is inclined, and the inclined surface of the pressing block contacts the top end of the connecting block. The left end of the telescopic rod two is slidably connected inside the upper cover plate as a further description of the above technical solution:
[0018] The bottom end of the pressing block is inclined, and the inclined surface of the pressing block is in contact with the top end of the connecting block. The left end of the telescopic rod is slidably connected to the inside of the upper cover plate.
[0019] This utility model has the following beneficial effects:
[0020] In this invention, a mechanical locking structure is constructed by linking the inclined surface of the pressing block with the connecting block and the sliding block, in conjunction with spring one, spring two, and the telescopic rod, to achieve "one-click" quick locking and disassembly of the upper and lower cover plates. The electromagnetic coil and magnetic plate attract each other, and the bearings work together to ensure the relative rotation of the limiting plate and the central shaft, achieving stable power transmission. The synergy of these two components improves assembly and disassembly efficiency while ensuring smooth motor torque transmission, meeting the high-efficiency and stable requirements of automated production and maintenance. Attached Figure Description
[0021] Figure 1 This is a three-dimensional schematic diagram of the quick-release micro motor connection mechanism proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the magnetic plate structure of the quick-release micro motor connection mechanism proposed in this utility model;
[0023] Figure 3 This is a schematic diagram of the pressing block of the quick-release micro motor connection mechanism proposed in this utility model.
[0024] Legend:
[0025] 1. Sealing plate one; 2. Sealing plate two; 3. Central shaft; 4. Upper cover plate; 5. Lower cover plate; 6. Bearing; 7. Limiting plate; 8. Electromagnetic coil; 9. Magnetic plate; 10. Connecting block; 11. Sliding block; 12. Telescopic rod one; 13. Spring one; 14. Pressing block; 15. Telescopic rod two; 16. Spring two. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Reference Figures 1 to 3 This utility model provides an embodiment of a quick-release micro motor connection mechanism, including a sealing plate 1, which serves as the main support component of the connection mechanism, providing an installation base for the upper cover plate 4, lower cover plate 5, and central shaft 3, and constructing a bottom sealing frame for the device to ensure the installation stability and sealing of the internal components. The right end of the sealing plate 1 is fixedly connected to the central shaft 3, which passes through and connects the sealing plate 1 and the sealing plate 2, serving as the core transmission axis of the device, ensuring the coaxiality and rotational stability of the components on both sides, and providing axial support for power transmission. The outer right end of the central shaft 3 is fixedly connected to the sealing plate 2. Together with the sealing plate 1, it forms a symmetrical sealed cavity to accommodate the electromagnetic adsorption component and provide a motor connection interface, ensuring a stable connection between the motor and the connection mechanism. The top of the sealing plate 1 is slidably connected to the upper cover plate 4, which covers the top opening of the sealing plate 1 and works with the lower cover plate 5 to seal the cavity, protecting the internal sliding block 11, spring and other mechanical components and preventing external impurities from entering. The bottom of the sealing plate 1 is slidably connected to the lower cover plate 5, which covers the bottom opening of the sealing plate 1 and forms an upper and lower sealing structure with the upper cover plate 4, ensuring a stable internal environment for the connection mechanism and preventing dust and liquid from affecting the operation of the component.
[0028] A connecting block 10 is fixedly connected to the bottom of the upper cover plate 4, serving as the mechanical connection hub between the upper cover plate 4 and the sealing plate 1. It engages with the sliding block 11 to achieve quick locking of the cover plate, ensuring the upper cover plate 4 is fixed in position after installation. The top of the sealing plate 1 has a connecting groove adapted to the connecting block 10, providing a sliding guide path for the connecting block 10 and ensuring accurate alignment and stable sliding of the upper cover plate 4 during installation. The sealing plate 1 has a sliding block 11 internally connected, sliding up and down under the elastic force of the spring 13. Through the top slot engaging with the connecting block 10, it achieves mechanical locking and releasing of the upper and lower cover plates 5, serving as the core transmission component of the quick-release structure. The top of the sliding block 11 and the connecting block 10... The bottom ends of blocks 10 are in contact with each other. The horizontal pushing force of pressing block 14 is transmitted through the inclined surface and converted into the vertical displacement of connecting block 10, triggering locking or unlocking action. The lower cover plate 5 is internally slidably connected to an elastic component. The elastic potential energy of spring 13 is stored and released to provide reset power for sliding block 11, ensuring the automatic operation of the locking structure of lower cover plate 5. The elastic component includes sliding block 11. The lower cover plate 5 is internally slidably connected to the outside of sliding block 11. The bottom end of sliding block 11 is fixedly connected to telescopic rod 12, which provides vertical sliding guidance for sliding block 11, ensuring that it moves along the predetermined trajectory inside the sealing plate 1, avoiding deviation and jamming, and ensuring the stability of the movement of sliding block 11.
[0029] A spring 13 is fitted around the telescopic rod 12. Through elastic force, the sliding block 11 moves upward, causing its top slot to engage with the connecting part of the lower cover plate 5, thus automatically locking and resetting the lower cover plate 5, improving disassembly and assembly efficiency. A pressing block 14 is fixedly connected to the right end of the upper cover plate 4. As a human-machine interface component, pressing triggers the unlocking process of the upper cover plate 4, achieving convenient "one-button" operation and simplifying disassembly and assembly steps. A telescopic rod 15 is fixedly connected to the left end of the pressing block 14, providing a horizontal sliding guide for the pressing block 14, limiting its movement trajectory, ensuring the stability and reliability of the pressing action, and preventing deviation during operation. A spring 16 is fitted around the telescopic rod 15. Through elastic deformation, it absorbs the pressing impact force and simultaneously provides the reset elastic force of the pressing block 14, ensuring the pressing... The smooth operation allows the pressing block 14 to automatically return to its original position. One end of the second spring 16 is fixedly connected to the left end of the pressing block 14. The bottom end of the pressing block 14 is inclined. Through the inclined angle design, the horizontal displacement of the pressing block 14 is efficiently converted into the vertical displacement of the connecting block 10, realizing labor-saving operation. The inclined surface of the pressing block 14 contacts the top end of the connecting block 10. The pressing force is transmitted to the connecting block 10 through mechanical transmission, triggering the locking and unlocking action of the sliding block 11. The left end of the second telescopic rod 15 is slidably connected to the inside of the upper cover plate 4. Through sliding cooperation, the pressing block 14 is allowed to move horizontally, while limiting its up and down swaying, ensuring operational reliability. The other end of the second spring 16 is fixedly connected to the right end of the upper cover plate 4. The bottom end of the pressing block 14 contacts the top end of the connecting block 10.
[0030] Reference Figure 2 A bearing 6 is rotatably connected to the outside of the central shaft 3, serving as a rotational support component between the limiting plate 7 and the central shaft 3. Through low-friction rolling contact, it ensures the limiting plate 7 can rotate freely around the central shaft 3, reducing power transmission loss. The limiting plate 7 is fixedly connected to the outside of the bearing 6, carrying the electromagnetic coil 8 and rotating synchronously with it. It transmits motor power to the sealing plate 2 via electromagnetic adsorption, while simultaneously limiting the radial displacement of the electromagnetic coil 8 to ensure stable power transmission. An electromagnetic coil 8 is fixedly connected inside the limiting plate 7. When energized, it generates a magnetic field, attracting and adhering to the magnetic plate 9 inside the sealing plate 2, achieving non-contact power transmission, avoiding mechanical transmission wear, and ensuring smooth power transmission. A magnetic plate 9 is fixedly connected inside the sealing plate 2, forming magnetic coupling with the electromagnetic coil 8. It transmits torque through magnetic adsorption and simultaneously provides a mounting surface for the motor connection, ensuring effective transmission of motor power. The electromagnetic coil 8 and... The contact between the magnetic plates 9 and the magnetic plates ensures precise magnetic attraction after energization, forming a stable power transmission interface. The outer part of the electromagnetic coil 8 contacts the inner part of the sealing plate 2. The size fit ensures the attraction distance between the electromagnetic coil 8 and the magnetic plates 9, optimizing the magnetic force transmission efficiency. The inner part of the bearing 6 contacts the outer part of the central shaft 3. The interference fit or clearance fit ensures the coaxiality of the bearing 6 and the central shaft 3, ensuring rotational accuracy. The outer part of the limiting plate 7 contacts the inner parts of the sealing plate 1 and the sealing plate 2. The shape fit restricts the axial movement of the limiting plate 7, improving the stability during power transmission. The inner part of the bearing 6 matches the outer part of the central shaft 3. The interference fit or clearance fit ensures the coaxiality of the bearing 6 and the central shaft 3, ensuring rotational accuracy. The outer part of the limiting plate 7 matches the inner parts of the sealing plate 1 and the sealing plate 2. The shape fit restricts the axial movement of the limiting plate 7, improving the stability during power transmission.
[0031] Working principle: First, the bearing 6 is fitted onto the outside of the central shaft 3, fixing the limiting plate 7 to the outside of the bearing 6. Then, the electromagnetic coil 8 is embedded inside the limiting plate 7. Subsequently, the magnetic plate 9 is installed onto the inner wall of the sealing plate 2, completing the pre-assembly of the electromagnetic adsorption assembly. Next, the sealing plate 1 and the sealing plate 2 are connected by the central shaft 3, and the sealing plate 2 is fixed to the right end of the central shaft 3, constructing the main frame of the device. The connecting block 10 at the bottom of the upper cover plate 4 is aligned with the connecting groove at the top of the sealing plate 1. At this time, the sliding block 11 is supported by the elastic force of the spring 13, and its top end abuts against the bottom end of the connecting block 10, forming a pre-limiting position.
[0032] The inclined surface at the bottom of the pressing block 14 contacts the top of the connecting block 10, applying pressure to compress the spring 16 with the telescopic rod 15, causing the pressing block 14 to slide to the left. The thrust of the inclined surface drives the connecting block 10 downward, pressing the sliding block 11 downward simultaneously, and the telescopic rod 12 compresses the spring 13 along with the sliding block 11. When the connecting block 10 is fully embedded in the connecting groove, the spring 13 releases its elasticity, pushing the sliding block 11 upward, and its top end engages with the groove at the bottom of the connecting block 10, completing the mechanical locking of the upper cover plate 4.
[0033] The installation logic of the lower cover plate 5 is the same as that of the upper cover plate 4: the lower cover plate 5 is aligned with the connecting structure at the bottom of the sealing plate 1. The sliding block 11 is initially supported by the spring 13 and abuts against the connecting part of the lower cover plate 5. When the lower cover plate 5 is pressed down by external force, the connecting part squeezes the sliding block 11 downward, compressing the telescopic rod 12 and the spring 13. When the connecting part is in place, the spring 13 pushes the sliding block 11 upward, locking the lower cover plate 5, thus achieving the closed enclosure of the sealing plate 1 by the upper and lower cover plates 5.
[0034] When the electromagnetic coil 8 is energized, it generates a magnetic field that attracts and adheres to the magnetic plate 9 inside the sealing plate 2. The limiting plate 7 can rotate freely outside the central shaft 3 with the help of the bearing 6, realizing the power connection between the micro motor and the connecting mechanism. The motor drives the sealing plate 2 to rotate, and the magnetic plate 9 drives the electromagnetic coil 8 and the limiting plate 7 to rotate synchronously. The bearing 6 ensures that the central shaft 3 and the sealing plate 1 are relatively stationary, avoiding power interference.
[0035] During disassembly: Press the pressing block 14, repeating the pressing action during installation: the telescopic rod 15 compresses the spring 16, the pressing block 14 moves to the left, the inclined surface pushes the connecting block 10 downward, squeezing the sliding block 11 and compressing the spring 13. After the sliding block 11 disengages from the slot of the connecting block 10, the upper cover plate 4 can slide out along the top of the sealing plate 1, and the spring 16 releases its elastic force to push the pressing block 14 back to its original position. Apply an upward pulling force to the lower cover plate 5, the connecting part squeezes the sliding block 11 downward, compressing the telescopic rod 12 and the spring 13; after the sliding block 11 disengages from the slot of the connecting part, the lower cover plate 5 can be pulled out downward, the spring 13 pushes the sliding block 11 upward to its original position, the power supply to the electromagnetic coil 8 is cut off, the magnetic field disappears, the magnetic plate 9 disengages from the electromagnetic coil 8, and components such as the limiting plate 7 and the bearing 6 can be disassembled from the central shaft 3, completing the disassembly of the entire device.
[0036] The bearing 6 maintains the relative rotation between the central shaft 3 and the limiting plate 7, avoiding mechanical wear and ensuring smooth power transmission. Spring 13 and Spring 2 16 provide elastic restoring force to ensure that the sliding block 11 and the pressing block 14 automatically return to their positions, improving the ease of operation. The inclined surface of the pressing block 14 converts the linear pressing into the vertical displacement of the connecting block 10, realizing "one-click" locking / unlocking and simplifying the operation logic.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A quick-release micro motor connection mechanism, comprising a sealing plate (1), characterized in that: A central shaft (3) is fixedly connected to the right end of the sealing plate 1 (1). A sealing plate 2 (2) is fixedly connected to the outer right end of the central shaft (3). An upper cover plate (4) is slidably connected to the top end of the sealing plate 1 (1). A lower cover plate (5) is slidably connected to the bottom end of the sealing plate 1 (1). A connecting block (10) is fixedly connected to the bottom end of the upper cover plate (4). A connecting groove adapted to the connecting block (10) is opened at the top end of the sealing plate 1 (1). A sliding block (11) is slidably connected inside the sealing plate 1 (1). The top end of the sliding block (11) contacts the bottom end of the connecting block (10). An elastic component is slidably connected inside the lower cover plate (5). A pressing block (14) is fixedly connected to the right end of the upper cover plate (4). A telescopic rod 2 (15) is fixedly connected to the left end of the pressing block (14). A spring 2 (16) is sleeved on the outside of the telescopic rod 2 (15).
2. The quick-release micro motor connection mechanism according to claim 1, characterized in that: The elastic component includes a sliding block (11), the interior of the lower cover plate (5) is slidably connected to the exterior of the sliding block (11), the bottom end of the sliding block (11) is fixedly connected to a telescopic rod (12), the exterior of the telescopic rod (12) is fitted with a spring (13), one end of the spring (16) is fixedly connected to the left end of the pressing block (14), the other end of the spring (16) is fixedly connected to the right end of the upper cover plate (4), and the bottom end of the pressing block (14) is in contact with the top end of the connecting block (10).
3. The quick-release micro motor connection mechanism according to claim 1, characterized in that: The central shaft (3) is externally rotatably connected to a bearing (6), the bearing (6) is externally fixedly connected to a limiting plate (7), the limiting plate (7) is internally fixedly connected to an electromagnetic coil (8), and the sealing plate (2) is internally fixedly connected to a magnetic plate (9).
4. The quick-release micro motor connection mechanism according to claim 3, characterized in that: The electromagnetic coil (8) is in contact with the magnetic plate (9), and the outside of the electromagnetic coil (8) is in contact with the inside of the sealing plate (2).
5. The quick-release micro motor connection mechanism according to claim 3, characterized in that: The interior of the bearing (6) is in contact with the exterior of the central shaft (3), and the exterior of the limiting plate (7) is in contact with the interior of the sealing plate one (1) and the sealing plate two (2).
6. The quick-release micro motor connection mechanism according to claim 3, characterized in that: The interior of the bearing (6) is adapted to the exterior of the central shaft (3), and the exterior of the limiting plate (7) is adapted to the interior of the sealing plate one (1) and the sealing plate two (2).
7. The quick-release micro motor connection mechanism according to claim 1, characterized in that: The bottom end of the pressing block (14) is inclined, and the inclined surface of the pressing block (14) is in contact with the top end of the connecting block (10). The left end of the telescopic rod (15) is slidably connected to the inside of the upper cover plate (4).