Suitcase

By setting weighing components and power generation components on the handle or grip of the suitcase, the problem that the suitcase cannot detect weight in real time is solved, convenient weight detection and environmentally friendly power supply are achieved, and inconvenience and expenses caused by overweight are avoided.

WO2025161408A1PCT designated stage Publication Date: 2025-08-07ZHONGSHAN YESHM COMMODITIES
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Patent Information

Application Number
PCT/CN2024/118231
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-30
Filing Date
2024-09-11
Publication Date
2025-08-07

AI Technical Summary

Technical Problem

The existing suitcase cannot detect the weight of the loaded items in real time, resulting in embarrassment and additional expenses when traveling.

Method used

Weighing components are installed on the handle or grip of the suitcase. Through the cooperation of the pressure plate and the weighing sensor, real-time detection of the weight of the items in the suitcase is achieved, and power is provided through the power generation component to avoid dependence on the battery.

Benefits of technology

It facilitates users to understand the weight of the suitcase in real time, avoiding the embarrassment and extra costs caused by overweight, and is environmentally friendly and does not require battery power.

✦ Generated by Eureka AI based on patent content.

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Abstract

Disclosed in the present application is a suitcase. The suitcase comprises a suitcase body, a pull rod assembly, a weighing assembly, and a press member, and the suitcase body is provided with a handle; the pull rod assembly comprises pull rods and a grip member, the pull rods are arranged on the suitcase body, and the grip member is arranged on one end of the pull rods; the weighing assembly comprises a weighing sensor, a main board, and a display screen, the weighing sensor and the display screen are connected to the main board, and the weighing assembly is arranged on the handle or the weighing assembly is arranged on the grip member; the press member is used for connecting to the weighing sensor; when the weighing assembly is arranged on the handle, the press member is arranged on the side of the handle close to the suitcase body, and when the weighing assembly is arranged on the grip member, the press member is arranged at the bottom of the grip member. The suitcase of the present utility model provides convenience to a user when travelling, the embarrassment of having to repack a suitcase due to the suitcase being overweight in exceptional scenarios is prevented, and extra fees due to the suitcase being overweight can also be reasonably prevented.
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Description

suitcase Technical Field

[0001] The present application relates to the technical field of luggage cases, and in particular to a luggage case with a weighing function. Background Art

[0002] Luggage is a common travel item. When boarding an airplane, luggage is subject to weight checks, and if it exceeds a certain weight, a fee is charged. However, conventional luggage systems cannot measure the weight of the luggage and its contents, requiring the use of a separate weighing device. This prevents timely measurement of luggage weight, causing travel inconvenience.

[0003] Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems in the prior art. To this end, the present application proposes a luggage case, which is intended to timely understand the weight of the luggage case when traveling.

[0005] According to an embodiment of the present application, the suitcase includes a box body, a pull rod assembly, a weighing assembly and a pressure plate, and the box body is provided with a handle; the pull rod assembly includes a pull rod and a grip, the pull rod is provided on the box body, and the grip is provided at one end of the pull rod; the weighing assembly includes a weighing sensor, a main board and a display screen, the weighing sensor and the display screen are connected to the main board, the weighing assembly is provided on the handle, or the weighing assembly is provided on the grip, and the pressure plate is used to connect with the weighing sensor, when the weighing assembly is provided on the handle, the pressure plate is provided on the side of the handle close to the box body, and when the weighing assembly is provided on the grip, the pressure plate is provided at the bottom of the grip.

[0006] The suitcase according to the embodiment of the present application has at least the following beneficial effects: the suitcase of the present application is provided with a weighing assembly on the handle or the grip of the pull rod assembly, and through the cooperation between the pressure plate and the weighing assembly, when it is necessary to timely know the weight of the items loaded in the suitcase when traveling or during a trip, the weighing mode of the suitcase is turned on, and the weight of the items loaded in the suitcase can be measured by lifting the suitcase with the handle or the grip. This makes it convenient for users to travel, avoids the embarrassment of rearranging the suitcase due to overweight suitcases in special occasions, and appropriately avoids additional expenses caused by overweight suitcases.

[0007] According to some embodiments of the present application, the weighing assembly further includes a power generation assembly connected to the mainboard, and the power generation assembly is used to provide electrical energy to the weighing assembly.

[0008] According to some embodiments of the present application, the weighing assembly is arranged on the handle, the box body is provided with a connecting seat, the handle is rotatably provided on the connecting seat, the connecting seat is provided with a first ring gear, and the first ring gear is transmission-connected to the gear set of the power generation assembly.

[0009] According to some embodiments of the present application, the handle is provided with a connecting portion, the connecting portion is provided with an avoidance groove, a accommodating cavity is provided inside the handle, the avoidance groove is communicated with the accommodating cavity, the first gear ring is provided in the avoidance groove, and the power generation component is provided in the accommodating cavity.

[0010] According to some embodiments of the present application, the weighing assembly is arranged on the holding piece, the holding piece is rotatably connected to the pull rod, and one end of the pull rod connected to the holding piece is provided with a second ring gear, and the second ring gear is transmission-connected to the gear set of the power generation assembly.

[0011] According to some embodiments of the present application, the weighing assembly is provided on the handle, and the handle is provided with a driving assembly, and the driving assembly is transmission-connected to the gear set of the power generation assembly.

[0012] According to some embodiments of the present application, the driving assembly includes a movable part and a power generation button, the movable part is provided with a rack, the rack is transmission-connected to the gear set, the power generation button is connected to the movable part, and the power generation button is used to drive the movable part to move along a predetermined direction of the handle.

[0013] According to some embodiments of the present application, a transmission gear is provided in the handle, and the transmission gear is engaged with the rack and the gear set.

[0014] According to some embodiments of the present application, the handle is provided with a guide column, the movable part is sleeved on the guide column, a return spring is provided on the guide column, one end of the return spring abuts against the movable part, and the return spring is used to reset the movable part.

[0015] According to some embodiments of the present application, the weighing assembly is arranged on the holding piece, the holding piece is provided with a driving assembly, the driving assembly is connected to the gear set of the power generation assembly, a transmission gear is provided in the handle, and the transmission gear is engaged with the rack and the gear set; the handle is provided with a guide column, the movable part is sleeved on the guide column, and a reset spring is provided on the guide column, one end of the reset spring abuts against the movable part, and the reset spring is used to reset the movable part.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] FIG1 is a perspective schematic diagram of a suitcase according to an embodiment of the present application;

[0019] FIG2 is a perspective exploded schematic diagram of the suitcase of the embodiment shown in FIG1 ;

[0020] FIG3 is a cross-sectional view of the luggage case according to the embodiment shown in FIG1 ;

[0021] FIG4 is a partial enlarged view of point A in FIG3 ;

[0022] FIG5 is a partial cross-sectional view of the luggage case of the embodiment shown in FIG1 ;

[0023] FIG6 is an exploded perspective view of the handle of the suitcase of the embodiment shown in FIG1 ;

[0024] FIG7 is a perspective exploded schematic diagram of a suitcase according to a second embodiment of the present application;

[0025] FIG8 is a perspective exploded schematic diagram of a suitcase according to a third embodiment of the present application;

[0026] FIG9 is a cross-sectional view of the luggage case according to the embodiment shown in FIG8 ;

[0027] FIG10 is a partial enlarged view of point B in FIG9 ;

[0028] FIG11 is a perspective exploded schematic diagram of the handle of the suitcase of the embodiment shown in FIG8 ;

[0029] FIG12 is a perspective exploded schematic diagram of a suitcase according to a fourth embodiment of the present application.

[0030] Figure Number:

[0031] Luggage compartment 10;

[0032] Box body 100, accommodating space 101, handle 102, guide column 103, upper cover 104, lower cover 105, accommodating cavity 106, connecting portion 107, avoidance groove 108, connecting hole 109, roller 110, connecting seat 111, first ring gear 112, connecting shaft 113;

[0033] Tie rod assembly 200, tie rod 201, gripping member 202, second ring gear 203;

[0034] Weighing component 300, weighing sensor 301, mainboard 302, display screen 303, power generation component 304, button 305;

[0035] Driving assembly 400, movable part 401, rack 402, power generation button 403, transmission gear 404, return spring 405;

[0036] Press plate 500. DETAILED DESCRIPTION

[0037] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0038] In the description of this application, it should be understood that descriptions involving orientation, such as left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0039] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0041] 1 to 6 , a luggage case 10 provided in an embodiment of the present application includes a case body 100 , a pull rod assembly 200 , a weighing assembly 300 and a pressure plate 500 .

[0042] 1 and 2 , the suitcase 100 is provided with a handle 102 and a pull rod assembly 200 , and a roller 110 is provided at the bottom of the suitcase 100 . When going up and down stairs, the handle 102 can be used to lift the suitcase 10 loaded with heavier items. When walking on flat ground, the pull rod assembly 200 and the roller 110 can be used to pull the suitcase 10 on flat ground to save effort. The pull rod assembly 200 includes a pull rod 201 and a gripping piece 202. In this embodiment, two pull rods 201 are provided, and the two pull rods 201 are installed on the box body 100. The pull rods 201 can be stored in the box body 100 or partially pulled out of the box body 100 through the telescopic structure. The gripping piece 202 is provided at one end of the two pull rods 201, and the two ends of the gripping piece 202 are respectively connected to the corresponding pull rods 201. The weighing assembly 300 includes a weighing sensor 301, a main board 202 and a display screen 303. The weighing sensor 301 and the display screen 303 are connected to the main board 202.

[0043] It is understood that the weighing assembly 300 of the luggage case 10 proposed in this application can be provided on the handle 102 or on the grip 202, and the pressure plate 500 is connected to the load cell 301. When the weighing assembly 300 is provided on the handle 102, the pressure plate 500 is provided on the side of the handle 102 close to the case body 100 and is connected to the load cell 301, and the pressure plate 500 can produce a certain displacement relative to the handle 102; when the weighing assembly 300 is provided on the grip 202, the pressure plate 500 is provided at the bottom of the grip 202 and is connected to the load cell 301, and the pressure plate 500 can produce a certain displacement relative to the grip 202. When it is necessary to weigh the items loaded in the suitcase 10, buckle the pressure plate 500 and lift the suitcase 10 together with the handle 102 or the grip 202. The gravity exerted on the handle 102 or the grip 202 is transmitted to the weighing sensor 301 through the pressure plate 500, and then transmitted to the mainboard 202 through the weighing sensor 301. The mainboard 202 converts the corresponding weight digital information into the corresponding weight digital information and displays it on the display screen 303.

[0044] It is understood that the connection between the pressure plate 500 and the load cell 301 can be a fixed connection between the pressure plate 500 and the load cell 301, or a detachable connection structure with the load cell 301. When the pressure plate 500 and the load cell 301 adopt a detachable connection structure, the pressure plate 500 is movably arranged on the handle 102 or the grip 202 and can produce a certain displacement relative to the handle 102 or the grip 202. When it is necessary to measure the weight of the items loaded in the suitcase 10, the pressure plate 500 is buckled and moved in a direction close to the handle 102 or the grip 202, and the suitcase 10 is lifted. The pressure plate 500 abuts against the load cell 301, and the gravity acting on the handle 102 or the grip 202 is transmitted to the load cell 301 through the pressure plate 500, thereby completing the weight measurement of the items. After the weight measurement is completed, the suitcase 10 is put down, the pressing plate 500 is released, the pressing plate 500 is disengaged from the weighing sensor 301, and the weighing sensor 301 is restored.

[0045] The suitcase 10 of the present application is provided with a weighing assembly 300 on the handle 102 or the grip 202 of the pull rod assembly 200, and through the cooperation between the pressure plate 500 and the weighing assembly 300, when or during a trip, when it is necessary to timely know the weight of the items loaded in the suitcase 10, the weighing mode of the suitcase 10 is turned on, and the suitcase 10 is lifted by the handle 102 or the grip 202 to measure the weight of the items loaded in the suitcase 10. This makes it convenient for the user to travel, avoids the embarrassment of rearranging the suitcase 10 due to the overweight of the suitcase 10 in special occasions, and appropriately avoids the extra expenses caused by the overweight of the suitcase 10.

[0046] It should be noted that the pull rod assembly 200 may also be provided with only one pull rod 201. When one pull rod 201 is provided, the pressing plate 500 may be provided on one side or both sides of the pull rod 201, which will not be described in detail here.

[0047] 2, 3, and 6, in some embodiments, the weighing assembly 300 of the luggage case 10 proposed in this application further includes a power generation assembly 304. The power generation assembly 304 is connected to the mainboard 202 and is used to provide power to the weighing assembly 300. When the weighing assembly is mounted on the handle 102, the power generation assembly 304 is correspondingly mounted on the handle 102. When the weighing assembly 300 is mounted on the grip 202, the power generation assembly 304 is correspondingly mounted on the grip 202. As a result, the luggage case 10 proposed in this embodiment does not require a battery to power the weighing assembly 300, eliminating dependence on batteries and contributing to environmental protection.

[0048] It can be understood that the power generation component 304 used in the weighing electronic scale usually includes a generator, a gear set, a rectifier and voltage regulator module, an energy storage module, etc. The input end of the gear set is connected to the driving part, and the output end of the gear set is connected to the generator. The driving part drives the gear set to rotate, and the gear set drives the generator to rotate at high speed to generate electricity. The current generated by the generator is processed by the rectifier and voltage regulator module and stored in the energy storage module to provide power for the main board 202.

[0049] Referring to Figures 1 to 7 , the luggage case 10 of the present application provides a first specific embodiment. A weighing assembly 300 is disposed on the handle 102. A button 305 is provided on the handle 102. The button 305 is connected to the main board 202. The button 305 operates the main board 202 to perform operations such as zeroing the weighing assembly 300 and converting weight units. A power generation assembly 304 is correspondingly disposed within the handle 102. The handle 102 thus serves both as a handle 102 and as a weighing device for the luggage case 10. In order to realize the assembly of the handle 102 and cooperate with the driving power generation component 304 to generate electricity, in this embodiment, two connecting seats 111 are provided on the box body 100. The two ends of the handle 102 are connected to the corresponding connecting seats 111 through a connecting shaft 113, and the handle 102 can rotate around the axis of the connecting shaft 113. A first ring gear 112 is provided on the connecting seat 111, and the first ring gear 112 is engaged with the input end of the gear set of the power generation component 304. In addition, a accommodating space 101 is provided on the surface of the box body 100. When the handle 102 is not in use, the handle 102 is stored in the accommodating space 101. When the handle 102 is needed to lift the suitcase 10, the handle 102 is rotated 90 degrees. Since the first ring gear 112 on the connecting seat 111 is engaged with the gear set of the power generation component 304, when the handle 102 rotates, the gear set of the generator component is driven to rotate through the first ring gear 112, thereby driving the generator to generate electricity. The electricity generated by the power generation component 304 is supplied to the main board 202 for use.

[0050] To measure the weight of items loaded in suitcase 10, hold down pressure plate 500 and move it toward handle 102. Lift suitcase 10 using handle 102, causing pressure plate 500 to contact load cell 301. The force exerted on handle 102 is then transferred to load cell 301 via pressure plate 500, effectively measuring the weight of the items. After the weight measurement is complete, lower suitcase 10 and release pressure plate 500, releasing the contact between pressure plate 500 and load cell 301, allowing the load cell 301 to return to its original position.

[0051] 6 , in some embodiments, the handle 102 is assembled by an upper cover 104 and a lower cover 105 , and connecting portions 107 are provided at both ends of the lower cover 105 , and the connecting portions 107 are used to dock with the connecting seat 111 , and the connecting portion 107 is provided with an avoidance groove 108 , and the side wall of the avoidance groove 108 is provided with a connecting hole 109 , and an accommodating cavity 106 is formed between the upper cover 104 and the lower cover 105 , and the weighing component 300 and the power generation component 304 are arranged in the accommodating cavity 106 , and the avoidance groove 108 is communicated with the accommodating cavity 106 , and the first gear ring 112 is arranged in the avoidance groove 108 , and when the handle 102 rotates, the avoidance groove 108 can avoid the first gear ring 112 .

[0052] Referring to Figure 7, the suitcase 10 of the present application proposes a second specific embodiment, which has a structure basically the same as the first embodiment, except that the weighing component 300 is arranged on the grip 202, the grip 202 is rotatably connected to the pull rod 201, and a second ring gear 203 is provided at one end of the pull rod 201, and the second ring gear 203 is transmission-connected to the gear set of the power generation component 304.

[0053] The handle 201 can be extended and retracted along the height of the suitcase 10. When not in use, it can be stored inside the suitcase 10. When needed, it can be pulled out along the height of the suitcase 10, engaging the rollers 110 to pull the suitcase 10. The grip 202 can rotate 90 degrees relative to the handle 201. Because the second ring gear 203 on the connecting base 111 meshes with the gear set of the generator assembly 304, rotation of the handle 102 drives the gear set of the generator assembly through the second ring gear 203, which in turn drives the generator to generate electricity. The electricity generated by the generator assembly 304 is then supplied to the mainboard 202.

[0054] To measure the weight of items loaded in the suitcase 10, hold the pressure plate 500 in place and move it toward the grip 202. Use the grip 202 to lift the suitcase 10. The pressure plate 500 contacts the load cell 301, and the force exerted by the grip 202 is transmitted to the load cell 301 via the pressure plate 500, completing the weight measurement. After the weight measurement is complete, lower the suitcase 10 and release the pressure plate 500. This releases the pressure plate 500 from the load cell 301, allowing the load cell 301 to return to its original position.

[0055] 8 , 9 , 10 and 11 , the suitcase 10 of the present application proposes a third specific embodiment. The difference between the suitcase 10 disclosed in this embodiment and the suitcase 10 disclosed in the first and second embodiments is that the position and structure of the driving component 400 that drives the power generation component 304 to generate electricity are different.

[0056] In this embodiment, the weighing assembly 300 is disposed on the handle 102 , and the handle 102 is provided with a driving assembly 400 , which is in transmission connection with the gear set of the power generation assembly 304 .

[0057] Specifically, the driving component 400 includes a movable part 401 and a power generation button 403. The movable part 401 is provided with a rack 402, which is connected to the gear set. The power generation button 403 is connected to the movable part 401. When the driving component 400 needs to be used to drive the power generation component 304 to generate electricity, the power generation button 403 is pressed. The power generation button 403 drives the movable part 401 to move along the predetermined direction of the handle 102. When the movable part moves, the rack 402 is used to drive the gear set of the power generation component 304 to rotate, and then drive the generator to rotate, so that the generator generates electricity. The electricity generated by the power generation component 304 is supplied to the mainboard 202 for use.

[0058] 10 and 11 , in some embodiments, a transmission gear 404 is provided in the handle 102 , and the transmission gear 404 engages with the rack 402 and the gear set. Through the transition connection of the transmission gear 404 , the matching error between the rack 402 and the gear set of the power generation component 304 can be eliminated, thereby improving the assembly accuracy between the drive component 400 and the power generation component 304 .

[0059] 10 and 11 , in some embodiments, the handle 102 is provided with a guide column 103 , the movable part 401 is sleeved on the guide column 103 , a return spring 405 is provided on the guide column 103 , one end of the return spring 405 is in contact with the movable part 401 , and the return spring 405 is used to reset the movable part 401 . By providing the guide column 103 and the return spring 405 , the movable part 401 can be accurately moved, and separation between the rack 402 and the transmission gear 404 during the movement of the movable part 401 can be avoided. In addition, the return spring 405 ensures the reset of the power generation button 403 to ensure the normal use of the weighing assembly 300 .

[0060] It is understandable that in some embodiments, the drive component 400 can also adopt a tension spring connected to the rotating shaft of the gear set of the power generation component 304, a knob with a gear ring, or other structural forms. When a knob with a gear ring is used, the gear ring of the knob engages with the gear set of the power generation component 304 for transmission.

[0061] 12 , the suitcase 10 of the present application proposes a fourth specific embodiment, which has a structure basically the same as that of the third embodiment, except that a weighing assembly 300 is provided on a grip 202 , and the grip 202 is provided with a driving assembly 400 , which is transmission-connected to a gear set of a power generation assembly 304 .

[0062] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] Of course, the present application is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A suitcase comprising: The box body is provided with a handle; A pull rod assembly, the pull rod assembly comprising a pull rod and a gripping piece, the pull rod being arranged on the box body, and the gripping piece being arranged on one end of the pull rod; A weighing assembly, comprising a weighing sensor, a main board, and a display screen, wherein the weighing sensor and the display screen are connected to the main board, and the weighing assembly is disposed on the handle, or the weighing assembly is disposed on the grip; A pressure plate, when the weighing component is provided on the handle, the pressure plate is provided on the side of the handle close to the box body; when the weighing component is provided on the gripping piece, the pressure plate is provided at the bottom of the gripping piece, and the pressure plate is used to connect with the weighing sensor.

2. The luggage case according to claim 1, wherein: The weighing assembly further includes a power generation assembly, which is connected to the mainboard and is used to provide electrical energy for the weighing assembly.

3. The luggage case according to claim 2, wherein: The weighing assembly is arranged on the handle, the box body is provided with a connecting seat, the handle is rotatably arranged on the connecting seat, the connecting seat is provided with a first ring gear, and the first ring gear is transmission-connected to the gear set of the power generation assembly.

4. The luggage case according to claim 3, wherein: The handle is provided with a connecting portion, the connecting portion is provided with an avoidance groove, a receiving cavity is provided in the handle, the avoidance groove is communicated with the receiving cavity, the first gear ring is provided in the avoidance groove, and the power generation component is provided in the receiving cavity.

5. The luggage case according to claim 2, wherein: The weighing assembly is arranged on the holding piece, and the holding piece is rotatably connected to the pull rod. One end of the pull rod connected to the holding piece is provided with a second ring gear, and the second ring gear is transmission-connected to the gear set of the power generation assembly.

6. The luggage case according to claim 2, wherein: The weighing assembly is arranged on the handle, and the handle is provided with a driving assembly, and the driving assembly is transmission-connected with the gear set of the power generation assembly.

7. The luggage case according to claim 6, wherein: The driving assembly includes a movable part and a power generation button. The movable part is provided with a rack, which is transmission-connected to the gear set. The power generation button is connected to the movable part, and the power generation button is used to drive the movable part to move along a predetermined direction of the handle.

8. The luggage case according to claim 7, wherein: A transmission gear is provided in the handle, and the transmission gear is engaged with the rack and the gear set.

9. The luggage case according to claim 7, wherein: The handle is provided with a guide column, the movable part is sleeved on the guide column, a return spring is provided on the guide column, one end of the return spring is in contact with the movable part, and the return spring is used to reset the movable part.

10. The luggage case according to claim 2, wherein: The weighing assembly is arranged on the holding piece, and the holding piece is provided with a driving assembly, and the driving assembly is connected to the gear set of the power generation assembly. A transmission gear is provided in the handle, and the transmission gear is engaged with the rack and the gear set; the handle is provided with a guide column, and the movable part is sleeved on the guide column, and a reset spring is provided on the guide column, one end of the reset spring abuts against the movable part, and the reset spring is used to reset the movable part.

Citation Information

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