A robot charging dock
By designing a snap-fit device and a locking mechanism, the difficulties in disassembling and assembling the robot charging base and the problem of structural instability are solved, enabling rapid maintenance and high stability, and improving user experience and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG INGMAR INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing robot charging docks are prone to poor contact due to electrode oxidation and wear during long-term use. They are also difficult to disassemble and assemble, have insufficient structural stability, pose safety hazards, and affect user experience and equipment lifespan.
The design employs a snap-fit device and locking mechanism. The snap-fit device, consisting of a release sleeve, a snap-fit sleeve, and a snap-fit rod, enables quick assembly and disassembly. The locking plate and movable spring form an anti-loosening system to ensure structural stability.
It simplifies the maintenance process, improves maintenance efficiency, enhances structural stability, eliminates safety hazards, and is suitable for demanding industrial environments and smart home systems.
Smart Images

Figure CN224289353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robot charging base technology, and more specifically, to a robot charging base. Background Technology
[0002] In the fields of modern smart homes and industrial automation, robot charging docks are key infrastructure devices. Their design quality and service life are directly related to the normal operation and work efficiency of intelligent robots. However, most robot charging docks currently on the market still have many technical defects in design concepts and structural details that need to be addressed, making it difficult to meet the actual needs of long-term stable use.
[0003] Firstly, current robot charging docks generally employ a spring-loaded electrode contact charging method. While this traditional design can meet basic charging needs in the initial stages of use, the electrodes inevitably face multiple challenges over time. In daily use, the electrodes are constantly exposed to air, making them susceptible to corrosion from dust, oxygen, and moisture, gradually leading to oxidation and surface rust. Simultaneously, frequent docking between the robot and the charging dock causes physical wear on the electrodes, resulting in deformation or localized damage to the contact surface. These cumulative damages ultimately lead to poor contact between the electrodes and the robot's charging interface, manifesting as charging difficulties. Serious problems such as instability, decreased charging efficiency, or even complete inability to charge require maintenance personnel to inspect the charging dock and replace damaged electrode plates to restore its normal function. However, most existing charging dock shell designs use traditional fixing methods, and the disassembly process usually requires the use of multiple professional tools such as screwdrivers, wrenches, and pry bars. The operation steps are cumbersome and complicated. For ordinary users who lack professional skills, this complicated disassembly and assembly process not only consumes a lot of time and energy, but also easily causes secondary damage to other parts of the charging dock due to improper operation, which greatly increases maintenance costs and usage difficulty, seriously affecting user experience and the overall service quality of the equipment.
[0004] Secondly, to address the aforementioned difficulties in disassembling and assembling the casing, some improved robot charging docks have indeed emerged on the market. While these designs do simplify disassembly and assembly and improve maintenance efficiency to some extent, these superficial improvements, while pursuing ease of operation, often result in significant overall instability. In practical applications, robots experience varying degrees of vibration and impact during entry and exit from the charging dock. This is especially true for large industrial robots or high-speed cleaning robots, where the inertial impact force generated when docking with the charging dock is not negligible. Under the long-term effects of these external forces, the simplified connection structure is prone to loosening, shifting, or even partial detachment. More seriously, once the charging dock's fixing structure becomes loose or misaligned, it not only affects the normal charging process but may also lead to misaligned contact between the electrode plates and the robot's charging interface, generating electrical sparks or short circuits, thus posing potential safety hazards. This lack of structural stability severely restricts the practical value and market competitiveness of improved charging docks, making them difficult to widely apply in demanding industrial environments or smart home systems requiring long-term stable operation, thus becoming one of the technological bottlenecks hindering the development of the intelligent robot industry. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] In view of the problems existing in the prior art, this utility model provides a robot charging dock to solve the technical problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a robot charging base, comprising a base, a clearance groove on the lower side of the base, and a locking device installed in the clearance groove. The locking device includes a release sleeve, a locking sleeve, a locking rod, a release groove, a release plate, a locking block, and a locking groove. The release sleeve is rotatably mounted on the outside of the locking sleeve, and the locking sleeve is detachably fitted onto the outside of the locking rod. The release groove has a variable diameter structure and is formed in the release sleeve. The release plate is movably disposed in the release groove, and the locking block is fixedly connected to one side of the release plate. The locking mechanism is located on the outside of the locking rod and is inserted into the locking slot. The locking mechanism includes a locking plate, a movable spring, a locking sleeve, a locking hole, a fixing block, a locking rod, and a movable block. The locking plate is rotatably mounted on the outside of the locking sleeve. The two ends of the movable spring are respectively connected to two adjacent movable blocks. The locking sleeve is slidably mounted on the outside of the locking sleeve. The locking hole is located on the locking plate. Multiple fixing blocks are fixedly mounted on the outside of the locking sleeve. The locking rod is fixedly connected to one side of the locking sleeve. Multiple movable blocks are located on one side of the release sleeve.
[0009] The present invention is further configured such that an upper shell is detachably provided on the base, and a spring electrode sheet is movably provided in the upper shell.
[0010] The present invention is further configured such that a movable rail is fixedly provided on one side of the release sleeve, and a movable groove is provided in the movable block, wherein the movable rail is adapted to the movable groove.
[0011] The present invention is further configured such that a locking spring is movably sleeved on the outside of the locking rod, one end of the locking spring is connected to the locking sleeve, and the other end of the locking spring is in contact with the locking plate.
[0012] The present invention is further configured such that the fixing block is designed as a columnar structure.
[0013] The present invention is further configured such that both the movable rail and the movable groove are T-shaped structures.
[0014] The present invention is further configured such that a movable wheel is rotatably provided on one side of the movable block, and the movable wheel is engaged between the two movable blocks.
[0015] The present invention is further provided in that the outer wall of the release sleeve, the locking plate, and the outer wall of the locking sleeve are all fixedly provided with multiple rubber strips.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides a robot charging dock with the following advantages:
[0018] 1. The snap-fit device, through the ingenious cooperation of the release sleeve, snap-fit sleeve, snap-fit rod, release groove, release plate, snap-fit block, and snap-fit groove, enables quick disassembly and assembly between the upper shell and the base. When maintenance personnel need to replace damaged spring electrode plates, they only need to rotate the release sleeve to trigger the release plate in the release groove, which in turn drives the snap-fit block out of the snap-fit groove, thus separating the snap-fit sleeve from the snap-fit rod. This eliminates the need for professional tools such as screwdrivers and wrenches, greatly simplifying the disassembly and assembly process. The variable-diameter design of the release groove makes the movement of the release plate smoother and more controllable, avoiding jamming during disassembly and assembly, while ensuring precise positioning of each component during assembly. This user-friendly disassembly and assembly design significantly improves maintenance efficiency, reduces the technical requirements for maintenance personnel, and effectively solves the problems of delayed repairs and increased maintenance costs caused by the difficulty of disassembly and assembly in traditional charging docks, greatly enhancing the practical value and user experience of the charging dock.
[0019] 2. The locking mechanism, through the ingenious combination of a locking plate, movable spring, locking sleeve, locking hole, fixed block, locking rod, and movable block, constructs a multi-layered anti-loosening system. Under normal use, the locking sleeve limits the movable wheel from the outside, while the locking hole on the locking plate and the locking rod on the locking sleeve are misaligned, forming double locking protection. The cylindrical fixed block forms a stable engagement structure with the movable wheel, while the T-shaped movable rail and movable groove ensure precise guidance of the movable block's movement. The locking spring further enhances the stability and reliability of the locking state, even in industrial machinery. Despite the powerful inertial impact from humans or high-speed cleaning robots, the overall structure remains stable, completely solving the stability issues caused by the simplified structure of existing improved charging docks. The rubber strips attached to the outer wall further enhance the structure's shock resistance and overall stability, effectively preventing misalignment of the spring electrode plates due to loose fixing structures, eliminating potential short-circuit safety hazards. This allows the charging dock to be reliably used in demanding industrial environments or smart home systems requiring long-term stable operation, providing solid infrastructure support for the development of the intelligent robot industry. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a robot charging base according to the present invention;
[0021] Figure 2 This is a schematic diagram of the dispersed structure in this utility model.
[0022] Figure 3 This is a schematic diagram of the snap-fit device and locking mechanism in this utility model;
[0023] Figure 4 This is a schematic diagram of the dispersed structure of the snap-fit device and locking mechanism in this utility model;
[0024] Figure 5 This is a cross-sectional structural diagram of the snap-fit device and locking mechanism in this utility model.
[0025] In the diagram: 1. Base; 2. Clearance groove; 3. Release sleeve; 4. Snap-fit sleeve; 5. Snap-fit rod; 6. Release groove; 7. Release plate; 8. Snap-fit block; 9. Snap-fit groove; 10. Locking plate; 11. Movable spring; 12. Locking sleeve; 13. Locking hole; 14. Fixing block; 15. Locking rod; 16. Movable block; 17. Upper shell; 18. Spring electrode plate; 19. Movable rail; 20. Movable groove; 21. Locking spring; 22. Movable wheel; 23. Rubber strip. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-5 A robot charging dock includes a base 1 with a clearance groove 2 on its lower side. A locking device is installed in the clearance groove 2. The locking device includes a release sleeve 3, a locking sleeve 4, a locking rod 5, a release groove 6, a release plate 7, a locking block 8, and a locking slot 9. The release sleeve 3 is rotatably mounted on the outside of the locking sleeve 4. The locking sleeve 4 is detachably fitted onto the outside of the locking rod 5. The release groove 6 has a variable diameter structure and is opened in the release sleeve 3. The release plate 7 is movably disposed in the release groove 6. The locking block 8 is fixedly connected to one side of the release plate 7 and is locked into the locking slot 9. The locking slot 9 is opened on the locking rod 5. On the outside, a locking mechanism is provided on the outside of the snap-fit sleeve 4. The locking mechanism includes a locking plate 10, a movable spring 11, a locking sleeve 12, a locking hole 13, a fixing block 14, a locking rod 15, and a movable block 16. The locking plate 10 is rotatably installed on the outside of the snap-fit sleeve 4. The two ends of the movable spring 11 are respectively connected to two adjacent movable blocks 16. The locking sleeve 12 is slidably installed on the outside of the snap-fit sleeve 4. The locking hole 13 is opened on the locking plate 10. Multiple fixing blocks 14 are fixedly installed on the outside of the snap-fit sleeve 4. The locking rod 15 is fixedly connected to one side of the locking sleeve 12. Multiple movable blocks 16 are provided on one side of the release sleeve 3.
[0030] The base 1 is detachably provided with an upper shell 17, and a spring electrode plate 18 is movably provided in the upper shell 17.
[0031] In this embodiment, when the spring electrode plate 18 needs to be replaced, the power is first turned off, then the entire device is inverted, and then the locking plate 10 is rotated so that the locking plate 10 drives the locking hole 13 to rotate to a position concentric with the locking rod 15. Then, the locking sleeve 12 is pushed down to slide, so that the locking sleeve 12 drives the locking rod 15 to pass into the locking hole 13, and the locking sleeve 12 and the locking plate 10 cooperate to compress the locking spring 21, so that the locking sleeve 12 no longer limits the outer side of the movable wheel 22. Then, the release sleeve 3 is rotated forward, so that the release sleeve 3 drives the movable rail 19 on one side to rotate, and the movable rail 19 cooperates with the movable groove 20 to drive the movable block 16 and the movable wheel 22 to rotate forward. Then, the movable block 16 will drive the movable wheel 22 to roll out from between the two fixed blocks 14. Then, the movable wheel 22 will drive the movable block 16 to slide outward along the movable rail 19 and the movable groove 20, so that the movable block 16 will drive the movable spring 11 to stretch outward. At the same time, the release sleeve 3 will drive the release groove 6 with the inner variable diameter structure to rotate in the forward direction. Then, the release plate 7 will move in the release groove 6, so that the release plate 7 will drive the snap-fit block 8 to be gradually pulled out from the snap-fit groove 9. Then, the snap-fit sleeve 4 will be pulled down to remove the snap-fit sleeve 4. Then, the other snap-fit sleeves 4 will be removed according to the above steps. Then, the base 1 and the upper shell 17 will be separated, and the spring electrode plate 18 will be replaced.
[0032] Please see Figures 3-5 As a further implementation of the overall equipment: a movable rail 19 is fixedly provided on one side of the release sleeve 3, and a movable groove 20 is provided in the movable block 16, with the movable rail 19 and the movable groove 20 being adapted to each other.
[0033] A locking spring 21 is movably sleeved on the outside of the locking rod 15. One end of the locking spring 21 is connected to the locking sleeve 12, and the other end of the locking spring 21 is in contact with the locking plate 10.
[0034] The fixing block 14 is designed as a column structure.
[0035] Both the movable rail 19 and the movable groove 20 are designed with a T-shaped structure.
[0036] One side of the movable block 16 is equipped with a movable wheel 22, which is engaged between two movable blocks 16.
[0037] Multiple rubber strips 23 are fixedly provided on the outer wall of the release sleeve 3, the locking plate 10, and the outer wall of the locking sleeve 12.
[0038] More specifically, after the spring electrode 18 is replaced, the base 1 and the upper shell 17 are reassembled, and the locking rod 5 passes through the pre-drilled mounting hole on the base 1. Then, the locking sleeve 4 is installed into the relief groove 2, and the locking sleeve 4 is fitted onto the outside of the locking rod 5. Then, the release sleeve 3 is rotated in the reverse direction. The release sleeve 3 will drive the movable block 16 and the movable wheel 22 to rotate in the reverse direction through the cooperation of the movable rail 19 and the movable groove 20. The release sleeve 3 will also drive the inner release groove 6 to rotate in the reverse direction. Then, the release plate 7 drives the locking block 8 to slide and reset, so that the locking block 8 is re-locked into the locking groove 9. When the locking block 8 is re-locked into the locking groove 9, the movable rail 19 and the movable groove 20 just cooperate to drive the movable block 16 to move between the two original fixed blocks 14. Then, the movable spring 11 resets and pulls the movable block 16 along the movable groove 9. The moving rail 19 and the movable groove 20 slide inward, causing the movable block 16 to drive the movable wheel 22 to re-engage between the two original fixed blocks 14. Then, the locking sleeve 12 is released, and the locking spring 21 pushes the locking sleeve 12 to slide back to its original position. Then, the locking sleeve 12 drives the locking rod 15 to slide back to its original position. After the locking spring 21 is fully reset, the locking rod 15 no longer passes into the locking hole 13. Then, the locking plate 10 is rotated again, causing the locking plate 10 to drive the locking hole 13 to rotate back to a position that does not correspond to the locking rod 15. Then, the locking rod 15 provides limiting support for the locking sleeve 12 to prevent the locking sleeve 12 from sliding. Then, the inner wall of the locking sleeve 12 limits the outer side of the movable wheel 22, so that the movable wheel 22 and the movable block 16 cannot move outward, thereby limiting the rotation of the release sleeve 3 and preventing accidental unlocking, thus ensuring the structural stability.
[0039] In summary, when the entire device is in use or running: First, disconnect the power. Then, invert the entire device and rotate the locking plate 10, causing the locking plate 10 to rotate the locking hole 13 to a position concentric with the locking rod 15. Then, push the locking sleeve 12 downwards to slide, causing the locking sleeve 12 to drive the locking rod 15 into the locking hole 13. The locking sleeve 12 and the locking plate 10 then work together to compress the locking spring 21, so that the locking sleeve 12 no longer limits the outer side of the movable wheel 22. Then, rotate the release sleeve 3 in the forward direction, causing the release sleeve 3 to drive the movable rail 19 on one side to rotate. The movable rail 19, in conjunction with the movable groove 20, drives the movable block 16 and the movable wheel 22 into position. The moving block 16 rotates in the forward direction, and then the moving wheel 22 rolls out from between the two fixed blocks 14. Then the moving wheel 22 drives the moving block 16 to slide outward along the moving rail 19 and the moving groove 20, so that the moving block 16 drives the moving spring 11 to stretch outward. At the same time, the release sleeve 3 drives the release groove 6 with the inner variable diameter structure to rotate in the forward direction. Then the release plate 7 moves in the release groove 6, so that the release plate 7 drives the snap-fit block 8 to be gradually pulled out from the snap-fit groove 9. Then the snap-fit sleeve 4 is pulled down to remove the snap-fit sleeve 4. Then, the other snap-fit sleeves 4 are removed by referring to the above steps. Then the base 1 and the upper shell 17 are separated, and the spring electrode plate 18 is replaced.
[0040] After the spring electrode 18 is replaced, the base 1 and the upper shell 17 are reassembled, and the locking rod 5 passes through the pre-drilled mounting hole on the base 1. Then, the locking sleeve 4 is installed into the relief groove 2, and the locking sleeve 4 is fitted onto the outside of the locking rod 5. Then, the release sleeve 3 is rotated in the reverse direction. The release sleeve 3 will drive the movable block 16 and the movable wheel 22 to rotate in the reverse direction through the cooperation of the movable rail 19 and the movable groove 20. The release sleeve 3 will also drive the inner release groove 6 to rotate in the reverse direction. Then, the release plate 7 drives the locking block 8 to slide and reset, so that the locking block 8 is re-locked into the locking groove 9. When the locking block 8 is re-locked into the locking groove 9, the movable rail 19 and the movable groove 20 just cooperate to move the movable block 16 between the two original fixed blocks 14. Then, the movable spring 11 resets and pulls the movable block 16 along the movable rail 19. 9 and the movable groove 20 slide inward, causing the movable block 16 to drive the movable wheel 22 to re-engage between the two original fixed blocks 14. Then, the locking sleeve 12 is released, and the locking spring 21 pushes the locking sleeve 12 to slide back to its original position. Then, the locking sleeve 12 drives the locking rod 15 to slide back to its original position. When the locking spring 21 is fully reset, the locking rod 15 no longer passes into the locking hole 13. Then, the locking plate 10 is rotated again, causing the locking plate 10 to drive the locking hole 13 to rotate back to a position that does not correspond to the locking rod 15. Then, the locking rod 15 provides limiting support for the locking sleeve 12 to prevent the locking sleeve 12 from sliding. Then, the inner wall of the locking sleeve 12 limits the outer side of the movable wheel 22, so that the movable wheel 22 and the movable block 16 cannot move outward, thereby limiting the rotation of the release sleeve 3 and preventing accidental unlocking, thus ensuring structural stability.
[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A robot charging dock, comprising a base (1), characterized in that: A clearance groove (2) is provided on the lower side of the base (1), and a snap-fit device is installed in the clearance groove (2). The snap-fit device includes a release sleeve (3), a snap-fit sleeve (4), a snap-fit rod (5), a release groove (6), a release plate (7), a snap-fit block (8), and a snap-fit groove (9). The release sleeve (3) is rotatably installed on the outside of the snap-fit sleeve (4). The snap-fit sleeve (4) is detachably fitted on the outside of the snap-fit rod (5). The release groove (6) is a variable diameter structure opened in the release sleeve (3). The snap-fit block (8) is connected to one side of the release plate (7). The snap-fit groove (9) is opened on the outside of the snap-fit rod (5). The snap-fit sleeve (4) is rotatably installed on the outside of the base (1), and the snap-fit sleeve (4) is detachably fitted on the outside of the snap-fit rod (5). A locking mechanism is provided on the outside of the locking sleeve (4). The locking mechanism includes a locking plate (10), a movable spring (11), a locking sleeve (12), a locking hole (13), a fixing block (14), a locking rod (15), and a movable block (16). The locking plate (10) is rotatably installed on the outside of the locking sleeve (4). The movable spring (11) is connected to two adjacent movable blocks (16). The locking sleeve (12) is slidably installed on the outside of the locking sleeve (4). The locking hole (13) is opened on the locking plate (10). Multiple fixing blocks (14) are installed on the outside of the locking sleeve (4). The locking rod (15) is connected to one side of the locking sleeve (12).
2. The robot charging dock according to claim 1, characterized in that: The base (1) is detachably provided with an upper shell (17), and a spring electrode plate (18) is movably provided in the upper shell (17).
3. A robot charging dock according to any one of claims 1 or 2, characterized in that: The release sleeve (3) is fixedly provided with a movable rail (19) on one side, and the movable block (16) is provided with a movable groove (20). The movable rail (19) and the movable groove (20) are adapted to each other.
4. A robot charging dock according to claim 3, characterized in that: A locking spring (21) is movably sleeved on the outside of the locking rod (15). One end of the locking spring (21) is connected to the locking sleeve (12), and the other end of the locking spring (21) is connected to the locking plate (10) in contact.
5. A robot charging dock according to claim 4, characterized in that: The fixing block (14) is designed as a column structure.
6. A robot charging dock according to claim 5, characterized in that: Both the movable rail (19) and the movable groove (20) are T-shaped structures.
7. A robot charging dock according to claim 6, characterized in that: The movable block (16) has a movable wheel (22) on one side that rotates, and the movable wheel (22) is engaged between the two movable blocks (16).
8. A robot charging dock according to claim 1, characterized in that: Multiple rubber strips (23) are fixedly provided on the outer wall of the release sleeve (3), the locking plate (10), and the outer wall of the locking sleeve (12).