Handheld sweeping machine

By using a multi -wedge -band transmission system, buffer parts and limit disks in the handheld cleaning machine, the problem of traditional cleaning machine noise and vibration is solved, and a more efficient and quieter cleaning effect is achieved.

CN222412783UActive Publication Date: 2025-01-28ZHEJIANG ZHONGYONG TOOLS CO LTD
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Patent Information

Application Number
CN202423122028.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-01-28
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

The gearbox of traditional handheld cleaning machines has excessive noise and vibration problems, resulting in inconvenience in use and shortened gearbox service life.

Method used

The multi -wedge belt transmission system is used, combined with buffer and limited disk to ensure the stability and reliability of power transmission, and reduce vibration and noise.

Benefits of technology

Effectively reduce the noise and vibration of the cleaning machine, and improve the life of the use experience and the use of the gear box.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a hand-held type cleaning machine, hand-held type cleaning machine includes: gear box, sweeping piece, drive piece, first buffer piece, gear box is equipped with driving wheel, driven wheel, poly V-belt and limit disc, driving wheel is equipped with first mounting tooth, driven wheel is equipped with second mounting tooth, and the tooth width of driving wheel and driven wheel is greater than the width of poly V-belt, and the limit disc is equipped with second mounting tooth. The two ends of the multi-wedge belt are installed on the first installation tooth and the second installation tooth respectively, and the outer side limiting disc can prevent the multi-wedge belt from falling off. The sweeping piece is connected with the driven wheel and plays a sweeping role; and the driving piece is connected with the gear box and supplies energy to the gear box. And the first buffering part comprises a first buffering module and a second buffering module, the first buffering module is arranged on the side, close to the driving part, of the driving wheel, the second buffering module is arranged on the side, close to the sweeping part, of the driven wheel, equipment operation impact is reduced through the buffering modules, noise and vibration are greatly reduced, and the use experience is optimized.
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Description

Technical Field

[0001] The utility model relates to the technical field of ground cleaning, in particular to a handheld cleaning machine. Background Art

[0002] Cleaning equipment is specially designed for cleaning, including vacuum cleaners, water suckers, sweepers, etc. Because of its high efficiency, easy operation and good cleaning effect, it is widely used in municipal sanitation, road cleaning, indoor floors and other places.

[0003] Handheld sweepers are relatively convenient and easy-to-use cleaning equipment. Their gearboxes are the key part of power transmission and conversion. They often produce excessive noise and strong vibrations during operation. Specifically, the gearboxes of traditional handheld sweepers are not designed to be sophisticated enough, and the meshing accuracy of the internal gears is low. When running at high speeds, the collision and friction between the gear tooth surfaces are uneven, which will generate a lot of noise and vibration. This situation will not only interfere with the user's operating environment and bring an unpleasant auditory experience to the user, but also cause premature wear of the internal components of the gearbox and reduce the service life of the gearbox. Utility Model Content

[0004] The utility model solves the problem of excessive noise and vibration of the gear box of the traditional sweeper.

[0005] To solve the above problems, the utility model adopts the following technical solutions: a handheld sweeper, specifically comprising: a gear box, a cleaning member, a driving member, a first buffer member, the gear box comprising: a driving wheel, a driven wheel, a multi-V belt and a limit plate, the driving wheel is provided with a first mounting tooth, the driven wheel is provided with a second mounting tooth, the width of the first mounting tooth and the width of the second mounting tooth are greater than the width of the multi-V belt, one end of the multi-V belt is installed on the first mounting tooth, and the other end of the multi-V belt is installed on the second mounting tooth, the limit plate is arranged on the outside of the first mounting tooth and the second mounting tooth, and the limit plate is used to prevent the multi-V belt from falling off the first mounting tooth and the second mounting tooth; the cleaning member is connected to the driven wheel, and the cleaning member is used for cleaning; the driving member is connected to the gear box to provide power to the gear box; the first buffer member comprises a first buffer module and a second buffer module, the first buffer module is installed on the side of the driving wheel close to the driving member, and the second buffer module is arranged on the side of the driven wheel close to the cleaning member.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the gearbox of the sweeper adopts a poly-V belt drive, and the wedge-shaped structure of the poly-V belt makes the friction force between it and the pulley more evenly distributed, and can effectively transmit power. Compared with the traditional flat belt drive, the poly-V belt can transmit greater power under the same tension. In the handheld sweeper, the poly-V belt can better transmit the power of the driving part to the driving wheel, and then drive the driven wheel and the cleaning part to work, ensuring the efficient cleaning work. At the same time, the transmission efficiency of the poly-V belt drive is relatively high, generally reaching about 92%-97%. In the process of power transmission, the energy loss is small, and the power of the driving part can be better utilized. At the same time, the wedge-shaped structure of the poly-V belt can reduce the vibration caused by sliding or jumping between the belt and the wheel during the transmission process, and the two buffer modules of the buffer can also effectively reduce the vibration between the driving wheel and the driving part and between the driven wheel and the cleaning room, thereby reducing the operating noise.

[0007] Furthermore, the driving member is a motor, the motor is connected to the driving wheel, and the limiting plate includes: a first limiting plate and a second limiting plate, the first limiting plate is arranged on the side of the driving wheel away from the motor, and the second limiting plate is arranged on the side of the driven wheel away from the cleaning member.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the first limit plate is arranged on the side of the driving wheel away from the motor, and the second limit plate is arranged on the side of the driven wheel away from the cleaning element. When the sweeper is subjected to external forces or vibrations in various directions during operation, the limit plate prevents the multi-V belt from falling off the mounting teeth of the driving wheel and the driven wheel, thereby ensuring the stability and reliability of the transmission system. At the same time, the first limit plate also plays the role of fixing the motor and the driving wheel, making the connection between the motor and the driving wheel more reliable, and the second limit plate plays the role of fixing the driven wheel and the cleaning element, thereby effectively reducing the noise and vibration of the sweeper during operation.

[0009] Furthermore, a clamping groove is provided at the center of the driving wheel, and the motor is provided with an output shaft, and the clamping groove is clamped and fixed to the output shaft.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the clamping groove in the center of the driving wheel is clamped and fixed to the motor output shaft, ensuring that the power output by the motor can be accurately transmitted to the driving wheel, and there is no power loss or uneven transmission due to loose connection or excessive gap, thereby reducing the noise generated during the operation between the motor and the driving wheel.

[0011] Furthermore, the handheld sweeper also includes a mounting shaft, one end of which is mounted at the center of the driven wheel, and the driven wheel is connected to the cleaning member via the mounting shaft.

[0012] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the installation shaft, as a connecting component between the driven wheel and the cleaning member, can effectively transfer the power obtained by the driven wheel to the cleaning member. When the driving wheel drives the driven wheel to rotate through the multi-V belt, the rotational power of the driven wheel is directly transmitted to the cleaning member via the installation shaft, so that the cleaning member can rotate at the expected speed and torque, thereby achieving a stable and continuous cleaning action. This connection through the installation shaft can reduce the instability such as shaking and deviation that may occur when the cleaning member rotates.

[0013] Furthermore, the handheld sweeper also includes a transmission rod, the driven wheel is provided with a transmission rod mounting groove, the transmission rod is installed in the transmission rod mounting portion, the transmission rod is connected to the mounting shaft, and the transmission rod is used for the driven wheel to drive the mounting shaft to rotate.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the transmission rod is installed in the transmission rod installation groove of the driven wheel and is connected to the installation shaft, which plays a key role in transmitting power between the driven wheel and the installation shaft. When the handheld sweeper is working, the rotational power of the driven wheel is effectively transmitted to the installation shaft through the transmission rod, ensuring the continuity of power transmission.

[0015] Furthermore, the installation shaft is provided with a through hole, the through hole is arranged in the radial direction of the installation shaft, and the transmission rod is installed in the through hole.

[0016] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the transmission rod is confined in the through hole, and it will not deviate or shake during the power transmission process, ensuring the linearity and stability of power transmission, and avoiding the problem of power loss or uneven power transmission caused by the unstable position of the transmission rod. At the same time, the traditional rod mounting groove abuts against the transmission rod, reducing the noise generated during the transmission process.

[0017] Furthermore, the driven wheel is provided with a second buffer, which is arranged in the transmission rod installation groove, one end of the second buffer abuts against the transmission rod, and the other end of the second buffer abuts against the inner wall of the transmission rod installation groove.

[0018] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: When the sweeper is running, the movement of the internal components will generate vibration. The second buffer can isolate the vibration and prevent the vibration of the driven wheel from being directly transmitted to other components through the transmission rod. This helps to maintain the smooth operation of the entire sweeper and improve the user experience. When the driven wheel vibrates due to the unevenness of the multi-V belt drive, the second buffer can reduce the transmission of this vibration to the mounting shaft and the sweeping parts to a certain extent, making the sweeper quieter and more stable when working.

[0019] Furthermore, the mounting shaft is provided with a worm part, and the cleaning member is provided with a worm wheel part, and the worm part cooperates with the worm wheel part to provide power to the cleaning member.

[0020] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the worm drive has a larger transmission ratio. In a handheld sweeper, the relatively high speed transmitted from the driven wheel can be reduced by cooperating with the worm part on the mounting shaft and the worm wheel part on the cleaning member. When the driven wheel rotates at a higher speed, the speed of the cleaning member will be significantly reduced after the worm and worm wheel transmission. This deceleration function enables the cleaning member to run at a lower speed that is more suitable for cleaning, avoiding poor cleaning effect due to excessively high speed. The worm drive can increase the torque while decelerating. Since the helix angle of the worm is small, during the power transmission process, the smaller input torque can be amplified into a larger output torque. The cleaning member can obtain a greater driving force, so that the resistance in the cleaning process can be overcome more effectively, and when cleaning thicker dust, hair or cleaning on an uneven ground, it can ensure that the cleaning member has enough power to work.

[0021] Furthermore, the cleaning element includes a rotating roller and bristles, the rotating roller is arranged on both sides of the worm gear part, and the bristles are arranged on the rotating roller.

[0022] Compared with the prior art, the technical effect achieved by adopting this technical solution is that the rotating rollers are arranged on both sides of the worm gear part, so that the cleaning range of the cleaning member can cover a wider area. When the handheld sweeper moves on the ground, the rotating rollers on both sides can clean the ground at the same time, avoiding the appearance of cleaning blind spots. At the same time, the design of bristles and rotating rollers effectively reduces the noise generated during use.

[0023] Furthermore, the rotating roller is provided with an engaging portion, the engaging portion is arranged at the center of the rotating roller, the worm gear portion is provided with a mounting portion, and the engaging portion and the mounting portion cooperate to drive the rotating roller.

[0024] Compared with the existing technology, the technical effect achieved by adopting this technical solution is that the meshing part at the center of the rotating roller and the mounting part of the worm gear are closely matched to achieve precise power transmission. During operation, this precise positioning effectively reduces the collision and impact caused by improper connection and excessive gap. It evenly disperses the impact force to prevent the impact energy from being directly transmitted to the entire equipment frame, causing resonance and secondary noise radiation. With the close connection between the meshing part and the mounting part, the vibration is limited to a smaller range and cannot spread over a large area, effectively blocking the vibration noise from spreading to the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a sweeper according to an embodiment of the utility model;

[0026] Figure 2This is a schematic diagram of the internal structure of a sweeper according to an embodiment of the utility model;

[0027] Figure 3 for Figure 2 The enlarged view of point B in the middle;

[0028] Figure 4 for Figure 2 Enlarged view of point C in the middle;

[0029] Figure 5 This is a schematic structural diagram of the relevant parts of the driven wheel of a sweeper according to an embodiment of the utility model;

[0030] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0031] Figure 7 This is a schematic diagram of the motor structure of a sweeper according to an embodiment of the utility model;

[0032] Figure 8 This is a schematic diagram of the driving wheel structure of a sweeper according to an embodiment of the utility model;

[0033] Fig. 9 This is a schematic diagram of the structure of a driven wheel of a sweeper according to an embodiment of the utility model;

[0034] Fig.10 This is a schematic diagram of a cleaning machine installation shaft structure according to an embodiment of the utility model;

[0035] Fig.11 The utility model is a schematic diagram of the structure of a cleaning part of a cleaning machine according to an embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 100-sweeper; 1-cleaning part; 2-gearbox; 10-mounting shaft; 11-through hole; 12-worm gear part; 20-driving wheel; 21-first mounting tooth; 22-clamping groove; 30-driven wheel; 31-second mounting tooth; 32-transmission rod mounting groove; 33-transmission rod; 34-second buffer part; 40-multi-V belt; 41-first limiting plate; 42-second limiting plate; 50-motor; 51-output shaft; 61-first buffer module; 62-second buffer module; 63-rotating roller; 64-worm gear part; 65-meshing part; 67-mounting part. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] See also Figure 1-Figure 11The utility model adopts the following technical scheme: a handheld sweeper 100, specifically comprising: a gear box 2, a cleaning member 1, a driving member, a first buffer member, the gear box 2 comprising: a driving wheel 20, a driven wheel 30, a multi-V belt 40 and a limit plate, the driving wheel 20 is provided with a first mounting tooth 21, the driven wheel 30 is provided with a second mounting tooth 31, the width of the first mounting tooth 21 and the width of the second mounting tooth 31 are greater than the width of the multi-V belt 40, one end of the multi-V belt 40 is installed on the first mounting tooth 21, and the other end of the multi-V belt 40 is installed on the second The mounting teeth 31, the limit plate is arranged on the outer sides of the first mounting teeth 21 and the second mounting teeth 31, the limit plate is used to prevent the multi-V belt 40 from falling off the first mounting teeth 21 and the second mounting teeth 31; the cleaning member 1 is connected to the driven wheel 30, and the cleaning member 1 is used for cleaning; the driving member is connected to the gear box 2 to provide power to the gear box 2; the first buffer member includes a first buffer module 61 and a second buffer module 62, the first buffer module 61 is installed on the side of the driving wheel 20 close to the driving member, and the second buffer module 62 is arranged on the side of the driven wheel 30 close to the cleaning member 1.

[0040] The gear box 2 of the sweeper 100 is driven by a poly-V belt 40. The wedge-shaped structure of the poly-V belt 40 makes the friction between it and the pulley more evenly distributed, and can effectively transmit power. Compared with the traditional flat belt transmission, the poly-V belt 40 can transmit greater power under the same tension. In the handheld sweeper 100, the poly-V belt 40 can better transmit the power of the driving member to the driving wheel 20, and then drive the driven wheel 30 and the cleaning member 1 to work, ensuring the efficient cleaning work. At the same time, the transmission efficiency of the poly-V belt 40 is relatively high, generally reaching about 92%-97%. During the power transmission process, the energy loss is small, and the power of the driving member can be better utilized. At the same time, the wedge-shaped structure of the poly-V belt 40 can reduce the vibration caused by sliding or jumping between the belt and the wheel during the transmission process.

[0041] For example, the buffer member adopts a spring, and the two buffer modules of the buffer member can effectively reduce the vibration between the driving wheel 20 and the driving member and between the driven wheel 30 and the cleaning room, thereby reducing the operating noise.

[0042] Specifically, see Figure 2-Figure 4 The driving member is a motor 50, which is connected to the driving wheel 20. The limiting plate includes: a first limiting plate 41 and a second limiting plate 42. The first limiting plate 41 is arranged on the side of the driving wheel 20 away from the motor 50, and the second limiting plate 42 is arranged on the side of the driven wheel 30 away from the cleaning member 1.

[0043] The first limiting plate 41 is arranged on the side of the driving wheel 20 away from the motor 50, and the second limiting plate 42 is arranged on the side of the driven wheel 30 away from the cleaning member 1. When the cleaning machine 100 is subjected to external forces or vibrations in various directions during operation, the limiting plates prevent the multi-V belt 40 from coming off the mounting teeth of the driving wheel 20 and the driven wheel 30, thereby ensuring the stability and reliability of the transmission system. At the same time, the first limiting plate 41 also plays a role in fixing the motor 50 and the driving wheel 20, making the connection between the motor 50 and the driving wheel 20 more reliable. The second limiting plate 42 plays a role in fixing the driven wheel 30 and the cleaning member 1, thereby effectively reducing the noise and vibration of the cleaning machine 100 during operation.

[0044] Specifically, see Figure 2 , Figure 3 , Figure 7 and Figure 8 A clamping groove 22 is provided at the center of the driving wheel 20, and the motor 50 is provided with an output shaft 51, and the clamping groove 22 is clamped and fixed to the output shaft 51.

[0045] The way in which the snap-in groove 22 at the center of the driving wheel 20 is snap-fitted and fixed to the output shaft 51 of the motor 50 ensures that the power output by the motor 50 can be accurately transmitted to the driving wheel 20, and there is no power loss or uneven transmission due to loose connection or excessive gap, thereby reducing the noise generated during the operation between the motor 50 and the driving wheel 20.

[0046] Specifically, see Figure 5 , Fig. 9 and Fig.10 The handheld sweeper 100 further includes a mounting shaft 10 , one end of which is mounted at the center of the driven wheel 30 , and the driven wheel 30 is connected to the cleaning member 1 via the mounting shaft 10 .

[0047] The mounting shaft 10, as a connecting component between the driven wheel 30 and the cleaning member 1, can effectively transmit the power obtained by the driven wheel 30 to the cleaning member 1. When the driving wheel 20 drives the driven wheel 30 to rotate through the poly-V belt 40, the rotational power of the driven wheel 30 is directly transmitted to the cleaning member 1 via the mounting shaft 10, so that the cleaning member 1 can rotate at the expected speed and torque, thereby achieving a stable and continuous cleaning action. This connection through the mounting shaft 10 can reduce the instability such as shaking and deviation that may occur when the cleaning member 1 rotates.

[0048] Specifically, see Figure 5 , Fig. 9 as well as Fig.10 The handheld sweeper 100 also includes a transmission rod 33. The driven wheel 30 is provided with a transmission rod mounting groove 32. The transmission rod 33 is installed in the transmission rod mounting portion 67. The transmission rod 33 is connected to the mounting shaft 10. The transmission rod 33 is used for the driven wheel 30 to drive the mounting shaft 10 to rotate.

[0049] The transmission rod 33 is installed in the transmission rod installation groove 32 of the driven wheel 30 and is connected to the installation shaft 10, which plays a key role in transmitting power between the driven wheel 30 and the installation shaft 10. When the hand-held sweeper 100 is working, the rotational power of the driven wheel 30 is effectively transmitted to the installation shaft 10 through the transmission rod 33, ensuring the continuity of power transmission.

[0050] Specifically, see Fig.10 The installation shaft 10 is provided with a through hole 11 , the through hole 11 is arranged in the radial direction of the installation shaft 10 , and the transmission rod 33 is installed in the through hole 11 .

[0051] The transmission rod 33 is confined in the through hole 11, and it will not deviate or shake during the power transmission process, ensuring the linearity and stability of power transmission, and avoiding the problem of power loss or uneven power transmission caused by the unstable position of the transmission rod 33. At the same time, the traditional rod mounting groove abuts against the transmission rod 33, reducing the noise generated during the transmission process.

[0052] Specifically, see Figure 5 and Figure 6 The driven wheel 30 is provided with a second buffer 34 , which is arranged in the transmission rod installation groove 32 , one end of the second buffer 34 abuts against the transmission rod 33 , and the other end of the second buffer 34 abuts against the inner wall of the transmission rod installation groove 32 .

[0053] For example, two second buffer members 34 are provided, one is provided at one end where the transmission rod 33 contacts the transmission rod installation groove 32 , and the other is provided at the other end where the transmission rod 33 contacts the transmission rod installation groove 32 .

[0054] When the sweeper 100 is in operation, the movement of the internal components will generate vibration. The second buffer 34 can isolate the vibration and prevent the vibration of the driven wheel 30 from being directly transmitted to other components through the transmission rod 33. This helps to maintain the smooth operation of the entire sweeper 100 and improve the user experience. When the driven wheel 30 vibrates due to the uneven transmission of the poly-V belt 40, the second buffer 34 can reduce the transmission of this vibration to the mounting shaft 10 and the sweeping member 1 to a certain extent, making the sweeper 100 quieter and more stable when working.

[0055] Specifically, see Figure 5 and Fig.10 The mounting shaft 10 is provided with a worm portion 12, and the cleaning member 1 is provided with a worm wheel portion 64. The worm portion 12 cooperates with the worm wheel portion 64 to provide power to the cleaning member 1.

[0056] The worm drive has a large transmission ratio. In the handheld sweeper 100, the relatively high rotation speed transmitted from the driven wheel 30 can be reduced by matching the worm portion 12 on the mounting shaft 10 with the worm wheel portion 64 on the cleaning member 1. When the driven wheel 30 rotates at a high speed, the rotation speed of the cleaning member 1 will be significantly reduced after the worm and worm wheel transmission. This deceleration function enables the cleaning member 1 to run at a low speed that is more suitable for cleaning, avoiding poor cleaning effect due to excessively high speed. The worm drive can increase torque while decelerating. Since the helix angle of the worm is small, during the power transmission process, a small input torque can be amplified into a large output torque. The cleaning member 1 can obtain a greater driving force, thereby being able to more effectively overcome the resistance during the cleaning process, and can ensure that the cleaning member 1 has enough power to work when cleaning thicker dust, hair or cleaning on an uneven ground.

[0057] Specifically, see Fig.11 The cleaning member 1 includes a rotating roller 63 and bristles. The rotating roller 63 is arranged on both sides of the worm gear portion 64, and the bristles are arranged on the rotating roller 63.

[0058] The rotating rollers 63 are arranged on both sides of the worm gear 64, so that the cleaning range of the cleaning member 1 can cover a wider area. When the handheld cleaning machine 100 moves on the ground, the rotating rollers 63 on both sides can clean the ground at the same time, avoiding the appearance of a cleaning blind spot. At the same time, the design of the bristles and the rotating rollers 63 effectively reduces the noise generated during use.

[0059] Specifically, see Figure 2 , Figure 5 , Fig.11 The rotating roller 63 is provided with a meshing portion 65 , which is arranged at the center of the rotating roller 63 , and the worm gear portion 64 is provided with a mounting portion 67 , which cooperates with the mounting portion 67 to drive the rotating roller 63 .

[0060] The meshing portion 65 at the center of the rotating roller 63 and the mounting portion 67 of the worm gear portion 64 are closely matched to achieve precise power transmission. During operation, this precise positioning effectively reduces the collision and impact caused by improper connection and excessive gap. It evenly disperses the impact force to prevent the impact energy from being directly transmitted to the entire equipment frame, causing resonance and secondary noise radiation. With the close connection between the meshing portion 65 and the mounting portion 67, the vibration is limited to a smaller range and cannot spread over a large area, effectively blocking the vibration noise from spreading to the outside world.

[0061] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A handheld cleaning machine, characterized in that: include: A gear box, the gear box comprising: a driving wheel, a driven wheel, a multi-V belt and a limiting plate, the driving wheel is provided with a first mounting tooth, the driven wheel is provided with a second mounting tooth, the width of the first mounting tooth and the width of the second mounting tooth are greater than the width of the multi-V belt, one end of the multi-V belt is installed on the first mounting tooth, and the other end of the multi-V belt is installed on the second mounting tooth, the limiting plate is arranged on the outer side of the first mounting tooth and the second mounting tooth, and the limiting plate is used to prevent the multi-V belt from coming off the first mounting tooth and the second mounting tooth; A cleaning member, the cleaning member is connected to the driven wheel and is used for cleaning; A driving member, the driving member is connected to the gear box and provides power to the gear box; The first buffer member includes a first buffer module and a second buffer module. The first buffer module is installed on the side of the active wheel close to the driving member, and the second buffer module is arranged on the side of the driven wheel close to the cleaning member.

2. The handheld sweeper according to claim 1, characterized in that: The driving member is a motor connected to the driving wheel. The limiting plate includes a first limiting plate and a second limiting plate. The first limiting plate is arranged on the side of the driving wheel away from the motor, and the second limiting plate is arranged on the side of the driven wheel away from the cleaning member.

3. The handheld sweeper according to claim 2, characterized in that: The center of the driving wheel is provided with a clamping groove, the motor is provided with an output shaft, and the clamping groove is clamped and fixed with the output shaft.

4. The handheld sweeper according to claim 2, characterized in that: The handheld sweeper also includes a mounting shaft, one end of which is mounted at the center of the driven wheel, and the driven wheel is connected to the cleaning member via the mounting shaft.

5. The handheld sweeper according to claim 4, characterized in that: The handheld sweeper also includes a transmission rod, the driven wheel is provided with a transmission rod mounting groove, the transmission rod is installed in the transmission rod mounting portion, the transmission rod is connected to the mounting shaft, and the transmission rod is used for the driven wheel to drive the mounting shaft to rotate.

6. The handheld sweeper according to claim 5, characterized in that: The installation shaft is provided with a through hole, the through hole is arranged in the radial direction of the installation shaft, and the transmission rod is installed in the through hole.

7. The handheld sweeper according to claim 5, characterized in that: The driven wheel is provided with a second buffer, which is arranged in the transmission rod installation groove, one end of the second buffer abuts against the transmission rod, and the other end of the second buffer abuts against the inner wall of the transmission rod installation groove.

8. The handheld sweeper according to any one of claims 4 to 7, characterized in that: The installation shaft is provided with a worm part, and the cleaning member is provided with a worm wheel part. The worm part cooperates with the worm wheel part to provide power to the cleaning member.

9. The handheld sweeper according to claim 8, characterized in that: The cleaning member comprises a rotating roller and bristles, wherein the rotating roller is arranged at both sides of the worm gear portion, and the bristles are arranged on the rotating roller.

10. The handheld sweeper according to claim 9, characterized in that: The rotating roller is provided with a meshing portion, the meshing portion is arranged at the center of the rotating roller, the worm gear portion is provided with a mounting portion, and the meshing portion cooperates with the mounting portion to drive the rotating roller.