Modular power detachable intelligent draw-bar box

By using a modularly designed power output and heat dissipation mechanism, the problems of inconvenient charging, high maintenance costs, and high-temperature safety hazards of smart suitcases are solved, enabling flexible power mode switching and space expansion, thus improving the user experience.

CN121667476APending Publication Date: 2026-03-17JIANGXI HONGTU GRP TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The fixed and integrated power unit of existing smart suitcases leads to inconvenient charging, high maintenance costs, lack of expandability of functional modules, limited internal space, and high temperature of power output components affecting safety, and cannot meet personalized needs.

Method used

The power output mechanism adopts a modular design, with a detachable motor housing. Combined with space expansion and heat dissipation mechanisms, the power modular design and the linkage between the heat dissipation mechanism and the power output mechanism utilize the rotation of the power to drive the fan blades for heat dissipation, achieving efficient energy utilization.

Benefits of technology

The power module can be disassembled and charged separately, reducing maintenance costs. No overall repair is required in case of failure. Manual mode switching is easy, and the heat dissipation mechanism effectively reduces high temperature, protecting the items inside the box, meeting personalized storage needs, and improving the user experience.

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Abstract

The invention discloses a modular power detachable intelligent draw-bar box, relates to the technical field of intelligent travel equipment, and provides the following scheme: the modular power detachable intelligent draw-bar box comprises a draw-bar box body, and further comprises a power output mechanism arranged at the bottom of the draw-bar box body and used for providing moving power for the draw-bar box body; the space expansion mechanism is arranged on one side of the draw-bar box body and is used for expanding the internal space of the draw-bar box body; and the heat dissipation mechanism is arranged at the lower part in the draw-bar box body. The power output mechanism is modularized and detachable, charging and maintenance are convenient, overall maintenance is not needed when faults occur, the power output mechanism is detachable when power is off, manual traction burden is relieved, meanwhile, the space expansion mechanism can flexibly expand the storage space, personalized requirements are met, the heat dissipation mechanism is linked with the power output mechanism, heat dissipation and dehumidification can be effectively achieved, potential safety hazards can be eliminated, and the service life of the power output mechanism is prolonged. The structure design is reasonable, operation is easy and convenient, the intelligent driving function and the practical storage function are achieved, and the use experience is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent travel equipment, and particularly relates to a modular power detachable intelligent trolley case. BACKGROUND

[0002] With the development of the integration of intelligent wearable devices and travel equipment, intelligent trolley cases have gradually become a market hotspot. The existing intelligent trolley cases are mostly integrated with positioning, charging, electronic unlocking and other functions, but there are obvious defects in the design of the power system. The power device of the traditional intelligent trolley case is mostly fixed and integrated, and cannot be detached alone, which leads to inconvenient charging and high maintenance cost, and the power module needs to be repaired as a whole when it fails. At the same time, the functional modules of the existing products lack expandability, the storage space is fixed, and the size of the internal space of the luggage case is limited due to the addition of the power driving device, which is difficult to meet the personalized needs of users, and the power output components generate high temperature after a long time of operation, which affects the temperature inside the trolley case and poses a safety hazard. At the same time, when the power module is out of power, manually pulling the trolley case will increase the physical exertion of the user, therefore, we propose a modular power detachable intelligent trolley case. SUMMARY

[0003] The modular power detachable intelligent trolley case proposed in the present application solves the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned purposes, the present application adopts the following technical solutions: A modular power detachable intelligent trolley case, comprising a trolley case body, further comprising: A power output mechanism at the bottom of the trolley case body for providing moving power to the trolley case body; A space expansion mechanism on one side of the trolley case body for expanding the internal space of the trolley case body; A heat dissipation mechanism below the inside of the trolley case body for heat dissipation air cooling treatment of the inside of the trolley case body, one side of the heat dissipation mechanism being connected with the power output mechanism.

[0005] Further, the power output mechanism comprises a motor box fixedly connected with the bottom of the trolley case body through fixing bolts, a driving motor fixedly connected inside the motor box, a first bevel gear fixedly connected with the driving shaft of the driving motor, a driven rod rotatably connected on one side inside the motor box, a second bevel gear fixedly connected with the driven rod corresponding to the first bevel gear, the second bevel gear being in meshing transmission with the first bevel gear on one side, and driving wheels fixedly connected at both ends of the driven rod.

[0006] Further, the power output mechanism further comprises a receiving box fixedly connected to the inner side of the motor box, an extension block is slidably connected in the receiving box, a supporting frame is fixedly connected to the top side of the extension block, a telescopic operating rod is rotatably connected to the supporting frame, and an auxiliary wheel is rotatably connected to the bottom of the telescopic operating rod.

[0007] Further, the controller and the converter are symmetrically fixedly connected in the motor box, and the controller and the converter are electrically connected with the driving motor, respectively.

[0008] Further, the space expansion mechanism comprises an extension box movably sleeved with the inner part of the trolley case body, a movable slot is formed in one side of the extension box, a gear rack is fixedly connected in the inner part of the movable slot, an operating slot is formed in one side of the trolley case body corresponding to the movable slot, a rotating shaft is rotatably connected in the inner part of the operating slot, a gear is fixedly connected to one end of the rotating shaft corresponding to the gear rack, the gear is movably sleeved in the inner part of the movable slot, and one side of the gear is in meshing transmission with the gear rack.

[0009] Further, the other end of the rotating shaft is rotatably connected with an operating ring, the operating ring is movably sleeved in the inner part of the operating slot, a clamping block is fixedly connected to one side of the inner part of the operating slot, one side of the operating ring is clamped with the clamping block, a trolley case cover plate is hingedly connected to the outer part of the extension box, a moving slot is formed in one side of the trolley case body corresponding to the extension box, and the extension box is movably sleeved in the inner part of the moving slot.

[0010] Further, the heat dissipation mechanism comprises a heat dissipation slot formed in the lower part of the inner part of the trolley case body, two connecting rods are rotatably connected in the inner part of the heat dissipation slot, a fan blade is fixedly connected to one end of each of the two connecting rods, a first belt pulley is fixedly connected to the other end of each of the two connecting rods, an accelerator is fixedly connected to the bottom end of the inner part of the heat dissipation slot, an output shaft is fixedly connected to the output end of the accelerator, a second belt pulley is fixedly connected to the output shaft corresponding to the first belt pulley, and the same first belt is in transmission connection with the outer parts of the first belt pulley and the second belt pulley.

[0011] Further, an input shaft is fixedly connected to the input end of the accelerator, a third belt pulley is fixedly connected to the input shaft, a fourth belt pulley is fixedly connected to the driven rod corresponding to the third belt pulley, a second belt is in transmission connection with the outer parts of the third belt pulley and the fourth belt pulley, a protective net is fixedly connected to one side of the inner part of the heat dissipation slot, and the protective net is located outside the fan blade.

[0012] Further, through holes are formed in the bottom of the trolley case body and the top of the motor box corresponding to the second belt, respectively, and the second belt is movably sleeved in the through holes.

[0013] Furthermore, air intake slots are respectively provided on the lower sides of the main body of the trolley case, and the air intake slots are connected to the heat dissipation slots. Threaded holes are arrayed at the bottom of the main body of the trolley case, and universal wheels are threadedly connected to the inside of the threaded holes. A telescopic pull rod is slidably connected to one side of the top of the main body of the trolley case.

[0014] Compared with existing technologies, the beneficial effects of this invention are: 1. The power output mechanism of this invention adopts a detachable modular design and is connected to the housing by fixing bolts. When charging is required, the motor housing can be disassembled separately for charging, avoiding the inconvenience of carrying the entire suitcase to find the charging interface. When the power module fails, there is no need to repair the entire suitcase, only the motor housing needs to be replaced or repaired, which greatly reduces maintenance costs and maintenance difficulty, and solves the pain points of inconvenient charging and high maintenance costs caused by the fixed integration of the power device of traditional smart suitcases. 2. The present invention can flexibly switch between power mode and manual mode. When the power module is out of power or automatic drive is not required, the motor box can be removed and casters installed to switch to traditional manual trolley case, which reduces the weight of the case and reduces the physical exertion of manual pulling by the user, thus meeting the needs of different usage scenarios. 3. The heat dissipation mechanism of this invention is linked with the power output mechanism, eliminating the need for an additional drive motor. It utilizes the rotational power of the power module during operation to drive the fan blades for heat dissipation, achieving efficient energy utilization. Continuous air cooling can effectively reduce the high temperature generated by the power module during long-term operation, preventing excessive internal temperature from affecting the lifespan of electronic components or causing safety hazards. It also has a dehumidification function, which can protect clothing, electronic equipment and other items inside the box from moisture. In summary, this device not only features a modular and detachable power output mechanism for convenient charging and maintenance, eliminating the need for overall repair in case of failure and reducing the burden of manual traction when power is unavailable, but also boasts a space expansion mechanism that flexibly expands storage space to meet individual needs. Furthermore, its heat dissipation mechanism is linked to the power output mechanism, effectively dissipating heat and dehumidifying, eliminating safety hazards. This results in a reasonable structural design, simple operation, and a combination of intelligent drive and practical storage functions, enhancing the user experience. Attached Figure Description

[0015] Figure 1 This is a top-view three-dimensional structural diagram of a modular, power-driven, detachable intelligent trolley case proposed in this invention; Figure 2 This is a three-dimensional top-view diagram of the overall structure of a modular, detachable, intelligent trolley case proposed in this invention. Figure 3 This is a top-view three-dimensional structural diagram of the main body of a modular, power-driven, detachable intelligent trolley case proposed in this invention; Figure 4This invention proposes a modular, power-driven, detachable intelligent trolley case. Figure 1 A magnified three-dimensional structural diagram of a portion at point A in the middle; Figure 5 This is a top-view three-dimensional structural diagram of the trolley body and the moving slot of a modular power detachable smart trolley case proposed in this invention; Figure 6 This is a top-view three-dimensional structural diagram of the extension box of a modular, power-driven, detachable intelligent trolley case proposed in this invention. Figure 7 This is a bottom-view three-dimensional structural diagram of the power output mechanism of a modular power detachable smart trolley case proposed in this invention; Figure 8 This is a bottom-view three-dimensional structural diagram of the controller and converter of the modular power detachable smart trolley case proposed in this invention; Figure 9 This is a bottom-view three-dimensional structural diagram of the heat dissipation mechanism and power output mechanism of a modular power detachable smart trolley case proposed in this invention; Figure 10 This is a first top-view three-dimensional structural diagram of the heat dissipation mechanism of a modular power detachable smart trolley case proposed in this invention; Figure 11 This is a second top-view three-dimensional structural diagram of the heat dissipation mechanism of a modular power detachable smart trolley case proposed in this invention; Figure 12 This is a partial bottom-view three-dimensional structural diagram of the trolley body of a modular, power-driven, detachable intelligent trolley case proposed in this invention.

[0016] In the diagram: 1. Suitcase body; 2. Power output mechanism; 201. Motor housing; 202. Drive motor; 203. First bevel gear; 204. Driven rod; 205. Second bevel gear; 206. Extension block; 207. Telescopic operating lever; 208. Auxiliary wheel; 209. Drive wheel; 3. Space expansion mechanism; 301. Extension box; 302. Rack; 303. Operating slot; 304. Rotating shaft; 305. Gear; 306. Operating ring; 307. Locking block; 308. 309. Suitcase cover; 4. Moving slot; 5. Heat dissipation mechanism; 6. Heat dissipation slot; 7. Connecting rod; 8. Fan blade; 9. First pulley; 10. Accelerator; 11. Input shaft; 12. Output shaft; 13. Second pulley; 14. First belt; 15. Third pulley; 16. Fourth pulley; 17. Second belt; 18. Protective net; 19. Telescopic rod; 20. Controller; 21. Converter; 22. Threaded hole; 33. Caster wheel. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Example, refer to Figures 1-12 A modular power-driven detachable smart trolley case includes a trolley case body 1, and also includes a power output mechanism 2, a space expansion mechanism 3, and a heat dissipation mechanism 4, with one side of the heat dissipation mechanism 4 connected to the power output mechanism 2.

[0020] In this invention, the power output mechanism 2 includes a motor housing 201 fixedly connected to the bottom of the trolley case body 1 by fixing bolts. A drive motor 202 is fixedly connected inside the motor housing 201. A first bevel gear 203 is fixedly connected to the drive shaft of the drive motor 202. A driven rod 204 is rotatably connected to one side inside the motor housing 201. A second bevel gear 205 is fixedly connected to the driven rod 204 at the position corresponding to the first bevel gear 203. One side of the second bevel gear 205 meshes with the first bevel gear 203 for transmission. Drive wheels 209 are fixedly connected to both ends of the driven rod 204. When the drive motor 202 starts, it drives the first bevel gear 203 to rotate and simultaneously meshes with the second bevel gear 205 for transmission, thereby driving the driven rod 204 to rotate. The rotation of the driven rod 204 drives the drive wheels 209 to rotate synchronously, thereby controlling the movement of the trolley case body 1 through the operating lever 207.

[0021] In this invention, the power output mechanism 2 also includes a storage box fixedly connected to one side of the interior of the motor housing 201. An extension block 206 is slidably connected inside the storage box. A support frame is fixedly connected to the top side of the extension block 206. A telescopic operating rod 207 is rotatably connected to the support frame. An auxiliary wheel 208 is rotatably connected to the bottom of the telescopic operating rod 207. A controller 6 and a converter 7 are symmetrically fixedly connected inside the motor housing 201. The controller 6 and the converter 7 are electrically connected to the drive motor 202. The controller 6 and the converter 7 perform current protection control and current output conversion processing on the drive motor 202.

[0022] In this invention, the space expansion mechanism 3 includes an extension box 301 that is movably fitted inside the main body 1 of the suitcase. A movable groove is provided on one side of the extension box 301, and a rack 302 is fixedly connected inside the movable groove. An operating groove 303 is provided on one side of the main body 1 corresponding to the movable groove. A rotating shaft 304 is rotatably connected inside the operating groove 303. A gear 305 is fixedly connected to one end of the rotating shaft 304 corresponding to the rack 302. The gear 305 is movably fitted inside the movable groove and meshes with the rack 302 on one side. An operating ring 306 is rotatably connected to the other end of the rotating shaft 304. The operating ring 306 is movably fitted inside the operating groove 303. A locking block 307 is fixedly connected to one side of the inside of the operating groove 303. One side of 06 is engaged with the locking block 307. The extension box 301 is hinged to the outside of the trolley case cover 308. A moving groove 309 is provided on one side of the trolley case body 1 corresponding to the extension box 301. The extension box 301 is movably fitted inside the moving groove 309. By rotating the operating ring 306, the rotating shaft 304 and the gear 305 are driven to rotate synchronously, thereby driving the rack 302 to move. The movement of the rack 302 causes the extension box 301 to extend outward along the moving groove 309, thereby expanding the storage space inside the trolley case body 1. After adjustment, the operating ring 306 is engaged inside the locking block 307, thereby limiting the operation ring 306 and effectively preventing the extension box 301 from moving during the movement.

[0023] In this invention, the heat dissipation mechanism 4 includes a heat dissipation groove 401 formed inside the lower part of the suitcase body 1. Two connecting rods 402 are symmetrically rotatably connected inside the heat dissipation groove 401. One end of each connecting rod 402 is fixedly connected to a fan blade 403, and the other end is fixedly connected to a first pulley 404. An accelerator 405 is fixedly connected to the bottom of the heat dissipation groove 401. An output shaft 407 is fixedly connected to the output end of the accelerator 405. A second pulley 408 is fixedly connected to the output shaft 407 at the location corresponding to the first pulley 404. The second pulley 408 and the first pulley 404 are externally connected by the same first belt 409. An input shaft 406 is fixedly connected to the input end of the accelerator 405. A third pulley 410 is fixedly connected to the input shaft 406. A fourth pulley 411 is fixedly connected to the driven rod 204 at the location corresponding to the third pulley 410. The fourth pulley 411 and the third pulley 410... An external transmission is connected to a second belt 412. A protective net 413 is fixedly connected to one side of the heat dissipation slot 401. The protective net 413 is located outside the fan blades 403. The rotation of the driven rod 204 drives the fourth pulley 411 to rotate. The rotation of the fourth pulley 411 drives the third pulley 410 to rotate through the second belt 412. The rotation of the third pulley 410 drives the input shaft 406 to rotate. Thus, the speed input to the input shaft 406 is accelerated by the accelerator 405, thereby driving the output shaft 407 to rotate at high speed, which in turn drives the second pulley 408 to rotate. The rotation of the second pulley 408 drives the rotation of the two first pulleys 404 through the first belt 409. The rotation of the first pulleys 404 drives the rotation of the two fan blades 403 through the connecting rod 402. The rotation of the two fan blades 403 ventilates and dissipates heat inside the suitcase body 1, and also dehumidifies the inside of the suitcase body 1.

[0024] In this invention, the bottom of the suitcase body 1 and the top of the motor housing 201 are respectively provided with through holes corresponding to the second belt 412. The second belt 412 is movably sleeved inside the through holes. Air inlet slots are respectively provided on the lower sides of the suitcase body 1. The air inlet slots are connected to the heat dissipation slot 401. Threaded holes 8 are arrayed at the bottom of the suitcase body 1. Universal wheels 9 are threadedly connected inside the threaded holes 8. Telescopic pull rod 5 is slidably connected to the top side of the suitcase body 1. When the power output mechanism 2 is removed, the weight of the suitcase body 1 is reduced by installing the universal wheels 9 inside the threaded holes 8, thereby reducing the burden on the user to manually pull the suitcase body 1.

[0025] Working principle: (I) Power Output and Control Principle: Power Drive Process: The core power of this smart trolley case is provided by the power output mechanism 2. The motor housing 201 is detachably connected to the bottom of the trolley case body 1 by fixing bolts, forming a modular design. When power drive is required, the controller 6 issues a command, and the converter 7 transmits the adaptive current to the drive motor 202. After the drive motor 202 starts, it drives the first bevel gear 203 on the drive shaft to rotate. Since the first bevel gear 203 meshes with the second bevel gear 205 on the driven rod 204, the rotational power is transmitted to the driven rod 204 through the bevel gear set, which in turn drives the drive wheels 209 at both ends of the driven rod 204 to rotate synchronously, realizing the automatic movement of the trolley case. The user can slide out the extension block 206 from the storage box to adjust the length and angle of the telescopic operating rod 207. The user can sit on the trolley case body 1 and use the auxiliary wheel 208 in conjunction with the drive wheel 209 to complete the direction control and movement operation.

[0026] Power module disassembly and manual switching: When the power module is out of power or automatic drive is not required, the fixing bolts can be unscrewed to remove the motor box 201. At this time, the casters 9 can be installed in place through the threaded holes 8 in the array at the bottom of the trolley case body 1. The user can then manually pull the trolley case by stretching the telescopic rod 5 at the top, thus achieving flexible switching between power mode and manual mode.

[0027] (II) Principle of Spatial Expansion Adjustment: The space expansion mechanism 3 achieves flexible expansion of the storage space through gear 305 and rack 302 transmission. When it is necessary to increase the storage space, the user rotates the operating ring 306 in the operating slot 303, which drives the rotating shaft 304 and the gear 305 at one end to rotate. Since the gear 305 meshes with the rack 302 in the movable slot of the extension box 301, the rotation of the gear 305 is converted into the linear movement of the rack 302, which in turn pulls the extension box 301 to extend outward along the moving slot 309 of the trolley case body 1, thereby expanding the internal space. After the extension is in place, the operating ring 306 is engaged with the locking block 307 in the operating slot 303 to fix the position of the extension box 301 through mechanical limiting, so as to avoid displacement during the movement. When closing, the operating ring 306 is rotated in the opposite direction to retract the extension box 301 into the trolley case body 1. The hinged trolley case cover 308 seals the case, ensuring the airtightness and integrity of the storage.

[0028] (III) Working principle of linkage heat dissipation: The heat dissipation mechanism 4 is linked with the power output mechanism 2 to achieve efficient heat dissipation without the need for additional power. When the drive motor 202 drives the driven rod 204 to rotate, the fourth pulley 411 on the driven rod 204 rotates synchronously, transmitting power through the second belt 412 to the third pulley 410 at the input end of the accelerator 405, which in turn drives the input shaft 406 to rotate. After the accelerator 405 speeds up the input speed, it drives the second pulley 408 to rotate at high speed through the output shaft 407. The second pulley 408 is connected to the first belt 412. The belt 409 drives the two first pulleys 404 to rotate, which in turn drives the two fan blades 403 in the heat dissipation slot 401 to rotate synchronously through the connecting rod 402. Outside air enters the heat dissipation slot 401 through the air intake slots on both sides of the suitcase body 1. After being accelerated by the fan blades 403, it forms an airflow to cool down the heat generated inside the suitcase body 1 and the power module, and at the same time removes internal moisture. The airflow is finally discharged through the gaps in the case or the preset channel. The protective net 413 effectively prevents foreign objects from entering the heat dissipation slot 401 and damaging the fan blades.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A modular power detachable intelligent trolley case, comprising a trolley case body (1), characterized in that, Also include: Power output mechanism (2), in the bottom of the trolley case body (1), for providing mobile power to the trolley case body (1); Space expansion mechanism (3), on one side of the trolley case body (1), for expanding the internal space of the trolley case body (1); Heat dissipation mechanism (4), below the inside of the trolley case body (1), for heat dissipation air cooling treatment of the inside of the trolley case body (1), one side of the heat dissipation mechanism (4) is connected with the power output mechanism (2).

2. The modular power detachable smart spinner suitcase of claim 1, wherein, The power output mechanism (2) includes a motor box (201) fixedly connected with the bottom of the trolley case body (1) by fixing bolts, a drive motor (202) fixedly connected inside the motor box (201), a first bevel gear (203) fixedly connected with the drive shaft of the drive motor (202), a driven rod (204) rotatably connected inside one side of the motor box (201), a second bevel gear (205) fixedly connected with the driven rod (204) corresponding to the first bevel gear (203), one side of the second bevel gear (205) engaged with the first bevel gear (203) for transmission, and drive wheels (209) fixedly connected at both ends of the driven rod (204).

3. The modular power detachable smart spinner suitcase of claim 2, wherein, The power output mechanism (2) further includes a storage box fixedly connected with one side of the inside of the motor box (201), an extension block (206) slidably connected inside the storage box, a support frame fixedly connected with one side of the top of the extension block (206), a telescopic operating rod (207) rotatably connected on the support frame, and an auxiliary wheel (208) rotatably connected at the bottom of the telescopic operating rod (207).

4. The modular power detachable smart spinner suitcase of claim 2, wherein, The inside of the motor box (201) is symmetrically fixedly connected with a controller (6) and a converter (7), and the controller (6) and the converter (7) are electrically connected with the drive motor (202), respectively.

5. The modular power detachable smart spinner suitcase of claim 1, wherein, The space expansion mechanism (3) includes an extension box (301) movably sleeved inside the trolley case body (1), a movable slot is formed in one side of the extension box (301), a rack (302) is fixedly connected inside the movable slot, an operating slot (303) is formed in one side of the trolley case body (1) corresponding to the movable slot, a rotating shaft (304) is rotatably connected inside the operating slot (303), a gear (305) is fixedly connected at one end of the rotating shaft (304) corresponding to the rack (302), the gear (305) is movably sleeved inside the movable slot, and one side of the gear (305) is engaged with the rack (302) for transmission.

6. The modular power detachable smart spinner suitcase of claim 5, wherein, The other end of the rotating shaft (304) is rotatably connected with an operating ring (306), the operating ring (306) is movably sleeved inside the operating slot (303), a clamping block (307) is fixedly connected inside one side of the operating slot (303), one side of the operating ring (306) is clamped with the clamping block (307), a trolley case cover plate (308) is hingedly connected outside the extension box (301), a moving slot (309) is formed in one side of the trolley case body (1) corresponding to the extension box (301), and the extension box (301) is movably sleeved inside the moving slot (309).

7. The modular power detachable smart spinner suitcase of claim 2, wherein, The heat dissipation mechanism (4) includes a heat dissipation groove (401) opened below the inside of the draw-bar box body (1), the inside of the heat dissipation groove (401) is symmetrically connected with two connecting rods (402), one end of the two connecting rods (402) is respectively fixedly connected with a fan blade (403), the other end of the two connecting rods (402) is respectively fixedly connected with a first belt pulley (404), the inside bottom end of the heat dissipation groove (401) is fixedly connected with an accelerator (405), the output end of the accelerator (405) is fixedly connected with an output shaft (407), the output shaft (407) is fixedly connected with a second belt pulley (408) at the position corresponding to the first belt pulley (404), and the second belt pulley (408) and the first belt pulley (404) are externally connected with the same first belt (409).

8. The modular power detachable smart spinner suitcase of claim 7, wherein, The input end of the accelerator (405) is fixedly connected with an input shaft (406), the input shaft (406) is fixedly connected with a third belt pulley (410), the driven rod (204) is fixedly connected with a fourth belt pulley (411) at the position corresponding to the third belt pulley (410), the fourth belt pulley (411) and the third belt pulley (410) are externally connected with a second belt (412), one side of the inside of the heat dissipation groove (401) is fixedly connected with a protective net (413), and the protective net (413) is located outside the fan blade (403).

9. The modular power detachable smart spinner suitcase of claim 8, wherein, The bottom of the draw-bar box body (1) and the top of the motor box (201) are respectively provided with through holes corresponding to the second belt (412), and the second belt (412) is movably arranged in the through holes.

10. The modular power detachable smart spinner suitcase of claim 1, wherein, Air inlets are respectively arranged below the two sides of the draw-bar box body (1), the air inlets are communicated with the inside of the heat dissipation groove (401), screw holes (8) are arranged on the bottom of the draw-bar box body (1), universal wheels (9) are screw-connected in the screw holes (8), and a telescopic draw-bar (5) is slidably connected to one side of the top of the draw-bar box body (1).