Double-fan power mechanism and scrubber

Abstract

The utility model discloses a double-fan power mechanism, and relates to the technical field of cleaning and sweeping vehicles and scrubbers. The device comprises a main supporting frame and a collecting opening, a driving part, at least two fans, a driving rotating wheel, a fan rotating wheel and a transmission belt which are arranged below the main supporting frame, the driving rotating wheel is connected with the first fan rotating wheel through the transmission belt, the driving rotating wheel is in sliding connection with the transmission belt, the first fan rotating wheel is in sliding connection with the transmission belt, and the fan rotating wheel is in sliding connection with the transmission belt. The tension adjusting assembly is used for changing tension of the transmission belt, and the transmission assembly is used for changing the advancing direction of the transmission belt. By the adoption of the technical scheme, the purchase and maintenance cost of the motors is remarkably reduced, compared with a traditional double-motor system and a single-motor driving mode, the overall cost is effectively reduced, the space utilization rate of the vehicle is increased at the same time, the design is more compact, and the space utilization rate of the vehicle is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of washing and sweeping vehicles and floor scrubbers, and in particular to a double-fan power mechanism and a floor scrubber. Background Art

[0002] In the prior art, a washing and sweeping vehicle is usually equipped with two independent motors, each of which is directly connected to a fan, and the input shaft of each fan is directly inserted into the shaft sleeve of the corresponding motor to realize the respective driving.

[0003] However, this traditional dual-motor drive method also has disadvantages. First, since each fan requires an independent motor, this increases the purchase cost of the motor. Second, each independent motor requires corresponding space for installation, which to a certain extent increases the space occupied by the vehicle and affects the overall design of the vehicle and the layout of other functional components. Utility Model Content

[0004] The purpose of the utility model is to provide a dual-fan power mechanism in view of the defects and shortcomings of the prior art, including a main support frame and a collecting port arranged below the main support frame, and the dual-fan power mechanism also includes:

[0005] A driving member, wherein the driving member is arranged on the main support frame;

[0006] At least two fans, each of which is disposed above the main support frame and is connected to the collecting port;

[0007] A driving wheel, wherein the driving wheel is arranged on the driving member;

[0008] A fan rotor, the fan rotor is arranged on the fan, and the fan rotor is located in the middle of the fan;

[0009] A transmission belt, wherein the driving wheel is connected to the fan wheel via the transmission belt, the driving wheel is slidably connected to the transmission belt, and the fan wheel is slidably connected to the transmission belt;

[0010] A tension adjustment component, which is arranged on a side of the main support frame close to the driving member and is used to change the tension of the transmission belt;

[0011] A conduction component is arranged on the upper side of the fan and is used to change the travel direction of the transmission belt.

[0012] Optionally, the tension adjustment component includes:

[0013] At least one tension adjustment wheel, disposed on the fan and slidably connected to the transmission belt;

[0014] A tension adjustment bracket, wherein the tension adjustment wheel bracket is connected to the tension adjustment wheel, and the tension adjustment bracket is used to change the position of the tension adjustment wheel to adjust the transmission belt tension.

[0015] Optionally, the conduction component further includes:

[0016] At least one transmission wheel, disposed on the fan and slidably connected to the transmission belt;

[0017] A conducting bracket is connected to the conducting wheel and is used to change the traveling direction of the transmission belt.

[0018] Optionally, the tension adjustment bracket is located on a side of the main support frame close to the driving member, the tension adjustment bracket includes a first adjustment block, an adjustment main bracket, a first adjustment hole and a first locking member, the first adjustment block is detachably connected to the tension adjustment wheel through the first locking member, the adjustment hole is located on the adjustment main bracket, and the adjustment main bracket is connected to the main support frame;

[0019] Among them, during the tension adjustment process, the first locking member is first released, allowing the first adjustment block to drive the tension adjustment wheel to move along the adjustment hole. After moving to the desired position, the first locking member is re-locked to fix the position of the tension adjustment wheel.

[0020] Optionally, the conductive bracket includes a conductive main bracket, a second adjustment block, a second locking piece, a third locking piece, a second adjustment hole and a third adjustment hole. The conductive main bracket is connected to the main support frame, the second adjustment block is located on the conductive main bracket, the second adjustment hole is located on the second adjustment block, and the third adjustment hole is located on the conductive main bracket. The second adjustment block is slidably connected to the conductive main bracket through the second locking piece, and the third locking piece is connected to the second adjustment block for further fixing the second adjustment block.

[0021] Optionally, a contact angle of the conduction wheel relative to the transmission belt is between 30-80 degrees.

[0022] Optionally, a bearing plate is further provided on the fan, and the fan is detachably connected to the main support frame via the bearing plate.

[0023] Optionally, the transmission belt is one of a toothed belt, a belt, a poly-V belt, and a chain.

[0024] In addition, the utility model also provides a floor scrubber, comprising the dual-fan power mechanism as described above.

[0025] After adopting the above technical solution, the beneficial effects of the utility model are:

[0026] 1. The transmission belt first starts by wrapping around the driving wheel and receiving power from the driving member. As the driving wheel rotates, the transmission belt transmits power to the first fan wheel on the right side of the mechanism in a straight line to the right, starting the fan. Then, the transmission belt continues to transmit to the left and connects to the second fan wheel on the left side of the mechanism to start the second fan synchronously. After the transmission belt completes the power supply to the two fans, it is guided and adjusted in direction by the conduction component 6 to ensure a smooth transition and return to the driving wheel to form a closed loop. During this process, the tension adjustment component 5 ensures that the transmission system maintains appropriate tension during operation to prevent the belt from slipping or being too loose, thereby optimizing the transmission efficiency and extending the service life of the transmission belt.

[0027] 2. In addition, using a single drive component to drive two fans significantly reduces the purchase and maintenance costs of the motor. Compared with the traditional dual-motor system, the single-motor drive method effectively reduces the overall cost and also increases the space utilization of the vehicle, making the design more compact and improving the space utilization of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 It is a partial structural schematic diagram of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the tension adjustment component of the utility model;

[0032] Figure 4 It is an exploded view of the tension adjustment component of the utility model;

[0033] Figure 5 It is a structural schematic diagram of the molded conduction component of the utility model;

[0034] Figure 6 It is an exploded view of the molded conduction component of the utility model.

[0035] Description of reference numerals:

[0036] 1. Main support frame; 11. Collection port;

[0037] 2. driving member; 21. driving wheel;

[0038] 3. Fan; 31. Fan wheel; 32. Loading plate;

[0039] 4. Transmission belt;

[0040] 5. Tension adjustment assembly; 51. Tension adjustment wheel; 52. Tension adjustment bracket; 521. First adjustment block; 522. Adjustment main bracket; 523. First adjustment hole; 524. First locking member;

[0041] 6. Conducting assembly; 61. Conducting wheel; 62. Conducting bracket; 621. Conducting main bracket; 622. Second adjusting block; 623. Second locking piece; 624. Third locking piece; 625. Second adjusting hole; 626. Third adjusting hole. DETAILED DESCRIPTION

[0042] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0043] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0047] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0048] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Reference Figure 1-5 , a dual-fan power mechanism is proposed, comprising a main support frame 1 and a collecting port 11 arranged below the main support frame 1, and the dual-fan power mechanism also includes:

[0050] A driving member 2, wherein the driving member 2 is arranged on the main support frame 1;

[0051] At least two fans 3, the fans 3 are arranged above the main support frame 1, and the fans 3 are connected to the collecting port 11;

[0052] A driving wheel 21, wherein the driving wheel 21 is disposed on the driving member 2;

[0053] A fan wheel 31, wherein the fan wheel 31 is disposed on the fan 3, and the fan wheel 31 is located in the middle of the fan 3;

[0054] The driving wheel 21 is connected to the fan wheel 31 through the driving belt 4, the driving wheel 21 is slidably connected to the driving belt 4, and the fan wheel 31 is slidably connected to the driving belt 4;

[0055] A tension adjustment component 5, which is arranged on the main support frame 1 near the driving member 2 and is used to change the tension of the transmission belt 4;

[0056] The conduction component 6 is arranged on the upper side of the fan 3 and is used to change the travel direction of the transmission belt 4.

[0057] In this embodiment, the transmission belt first starts around the driving wheel and receives power from the driving member. As the driving wheel rotates, the transmission belt transmits power to the first fan wheel on the right side of the mechanism in a straight line to the right, starting the fan. Then, the transmission belt continues to transmit power to the left and connects to the second fan wheel on the left side of the mechanism to start the second fan synchronously. After the transmission belt completes the power supply to the two fans, it is guided and adjusted in direction by the conduction component 6 to ensure a smooth transition and return to the driving wheel to form a closed loop. During this process, the tension adjustment component 5 ensures that the transmission system maintains appropriate tension during operation to prevent the belt from slipping or being too loose, thereby optimizing the transmission efficiency and extending the service life of the transmission belt.

[0058] In addition, using a single drive component to drive two fans significantly reduces the purchase and maintenance costs of the motor. Compared with the traditional dual-motor system, the single-motor drive method effectively reduces the overall cost and also increases the space utilization of the vehicle, making the design more compact and improving the space utilization of the vehicle.

[0059] Preferably, the drive element 2 is a direct current motor (BLDC) to improve energy efficiency and reduce maintenance requirements;

[0060] Preferably, the connection between the driving wheel 21 and the transmission belt 4 can be changed to a key connection or a design with anti-skid teeth to prevent slippage and power loss that may occur in the sliding connection.

[0061] Preferably, the machine wheel 31 can use an integrated bearing system to reduce assembly complexity and improve overall running stability.

[0062] Preferably, the fan wheel 31 can be made of a lightweight and high-strength composite material, such as carbon fiber or high-strength plastic, to reduce weight, lower inertia and improve response speed.

[0063] Preferably, the main support frame 1 can use aluminum alloy or titanium alloy instead of ordinary steel to reduce the structure weight and improve corrosion resistance.

[0064] Preferably, the driving element 2 may also be replaced by a common motor such as a permanent magnet synchronous motor (PMSM), an AC servo motor, a stepper motor, a switched reluctance motor (SRM), or an induction motor.

[0065] Optionally, the tension adjustment component 5 includes:

[0066] At least one tension adjustment wheel 51, provided on the fan 3 and slidably connected to the transmission belt 4;

[0067] The tension adjusting bracket 52 , the tension adjusting wheel 51 bracket is connected to the tension adjusting wheel 51 , and the tension adjusting bracket 52 is used to change the position of the tension adjusting wheel 51 to adjust the tension of the transmission belt 4 .

[0068] In this embodiment, by introducing an automatic tension control wheel and an electric adjustment bracket, the tension adjustment component 5 can achieve tension adjustment. This linkage not only improves the reliability and efficiency of the system, but also reduces the wear and energy consumption of the transmission belt caused by improper tension, extends the service life of the equipment, and reduces maintenance costs.

[0069] Preferably, the tension adjustment bracket 52 can be replaced with an electric adjustment bracket with a servo motor, allowing for more precise and rapid adjustment of the tension.

[0070] Preferably, the connection between the tension adjustment wheel 51 and the transmission belt 4 may be a wheel with a coating or surface treatment having better friction performance, so as to reduce slippage and improve transmission efficiency.

[0071] Optionally, the conducting component 6 further includes:

[0072] At least one transmission wheel 61, provided on the fan 3 and slidably connected to the transmission belt 4;

[0073] The conductive bracket 62 is connected to the conductive wheel 61 , and the conductive bracket 62 is used to change the traveling direction of the transmission belt 4 .

[0074] In this embodiment, the transmission assembly 6 includes a transmission wheel 61 and a transmission bracket 62. These components work together to accurately control the travel direction of the transmission belt 4. The transmission wheel 61 guides the transmission belt to run on the correct path between the fans 3 through a sliding connection with the transmission belt 4, ensuring smooth and continuous power transmission. The transmission bracket 62 adjusts the position of the transmission wheel 61 to respond to the dynamic load changes of the system and optimize the travel path of the transmission belt. This configuration improves the efficiency of the entire power transmission system, reduces energy loss, and ensures the synchronous operation of the dual fans.

[0075] Preferably, the conduction wheel 61 may be replaced by an intelligent conduction wheel with built-in tension and position sensors. Such a conduction wheel can monitor in real time and automatically adjust to cope with different operating conditions, thereby improving the adaptability of the system.

[0076] Preferably, an electric bracket with an automatic adjustment function can be used to make the adjustment of the position of the conduction wheel more accurate and rapid.

[0077] Optionally, the tension adjustment bracket 52 is located on the side of the main support frame 1 close to the driving member 2, and the tension adjustment bracket 52 includes a first adjustment block 521, an adjustment main bracket 522, a first adjustment hole 523 and a first locking member 524, the first adjustment block 521 is detachably connected to the tension adjustment wheel 51 through the first locking member 524, the adjustment hole is located on the adjustment main bracket 522, and the adjustment main bracket 522 is connected to the main support frame 1;

[0078] In the tension adjustment process, the first locking member 524 is first released, allowing the first adjustment block 521 to drive the tension adjustment wheel 51 to move along the adjustment hole. After moving to the desired position, the first locking member 524 is re-locked to fix the position of the tension adjustment wheel 51.

[0079] In this embodiment, the tension adjustment assembly optimizes the performance of the entire dual-fan power mechanism by controlling the tension of the transmission belt. During the adjustment process, the first locking member 524 is first released, allowing the first adjustment block 521 to drive the tension adjustment wheel 51 to move along the adjustment hole 523 on the main adjustment bracket 522, so that the tension adjustment is both flexible and precise, and the tension can be quickly adjusted according to different operating requirements. After moving to the ideal position, the first locking member 524 is re-locked to fix the position of the tension adjustment wheel 51 to ensure that the transmission belt maintains appropriate tension.

[0080] Preferably, the first locking member 524 can be replaced by an automatic locking system, which can automatically adjust and lock the position of the tension adjustment wheel based on sensor input, thereby improving the automation level and response speed of the system.

[0081] Preferably, the tension adjustment wheel 51 may be an intelligent tension wheel with a built-in tension sensor, which monitors and automatically adjusts the tension in real time.

[0082] Preferably, the connection between the main bracket 522 and the main support frame 1 can be adjusted by using a slide rail instead of a fixing hole to facilitate faster and more accurate adjustment.

[0083] Optionally, the conduction bracket 62 includes a conduction main bracket 621, a second adjustment block 622, a second locking piece 623, a third locking piece 624, a second adjustment hole 625 and a third adjustment hole 626, the conduction main bracket 621 is connected to the main support frame 1, the second adjustment block 622 is located on the conduction main bracket 621, the second adjustment hole 625 is located on the second adjustment block 622, the third adjustment hole 626 is located on the conduction main bracket 621, the second adjustment block 622 is slidably connected to the conduction main bracket 621 through the second locking piece 623, and the third locking piece 624 is connected to the second adjustment block 622 for further fixing the second adjustment block 622.

[0084] In this embodiment, the second adjustment block 622 can move along the second adjustment hole 625 on the conductive main bracket 621 to adjust the position of the conductive wheel 61, thereby changing the travel direction and tension of the transmission belt 4. At the same time, the third locking member 624 further fixes the second adjustment block 622 at the selected position to ensure stability and accuracy.

[0085] Preferably, the second locking member 623 and the third locking member 624 may use electromagnetic locking to achieve faster and automatic position locking, reducing the need for manual adjustment.

[0086] Preferably, the second adjustment block 622 may be provided with an intelligent adjustment system, equipped with a position sensor and an electric motor, and capable of automatically adjusting the position according to the system load and operating conditions.

[0087] Preferably, the connection mode of the locking member can be changed to a quick clamp or a snap-on design to facilitate quick adjustment and maintenance.

[0088] Optionally, the contact angle of the conducting wheel 61 relative to the transmission belt 4 is between 30-80 degrees.

[0089] In this embodiment, the contact angle of the transmission wheel 61 relative to the transmission belt 4 is between 30-80 degrees, which can optimize the contact area between the transmission wheel and the transmission belt, increase the friction force, thereby reducing sliding and improving the efficiency of power transmission;

[0090] Secondly, in this embodiment, the contact angle of the transmission wheel 61 relative to the transmission belt 4 is 30-80 degrees, which helps to disperse the pressure on the contact point, avoid excessive concentrated pressure causing rapid wear, extend the service life of the transmission belt and the transmission wheel, and reduce maintenance costs;

[0091] Optionally, a bearing plate 32 is further provided on the fan 3 , and the fan 3 is detachably connected to the main support frame 1 via the bearing plate 32 .

[0092] In this embodiment, the fan 3 is detachably connected to the main support frame 1 by using a bearing plate 32, which increases flexibility and ease of maintainability. This connection method allows for quick installation and removal of the fan 3, facilitates maintenance or replacement, and ensures the stability of the fan during operation.

[0093] Preferably, the connector may use a quick threaded connection or a snap-on connection to further simplify the installation and removal process.

[0094] Preferably, the connection between the fan 3 and the bearing plate 32 can use a shock-absorbing pad or a spring to reduce vibration during operation and extend the life of the fan and its peripheral components.

[0095] Preferably, the fixing method of the bearing plate 32 and the main support frame 1 can use an adjustable locking device, allowing the position and angle of the fan to be fine-tuned to adapt to different installation environments and adjust the working efficiency of the fan.

[0096] Preferably, the bearing plate 32 may be made of carbon fiber composite material or high-strength aluminum alloy or other similar materials.

[0097] Optionally, the transmission belt 4 is one of a toothed belt, a belt, a poly-V belt, and a chain.

[0098] In this embodiment, the toothed belt can provide a precise transmission without slippage, maintaining a constant speed ratio between the drive and the driven, and is suitable for applications requiring precise positioning and timing. The toothed belt does not require tension maintenance, reducing maintenance requirements and extending service life.

[0099] In this embodiment, the belt has the advantages of easy installation, low noise, good buffering and shock absorption performance, etc., which can reduce the impact in the load.

[0100] In this embodiment, the multi-V belt can provide higher transmission efficiency and greater power transmission capacity, and the smaller profile size can reduce space occupation. It has strong wear resistance and is suitable for heavy load applications.

[0101] In this embodiment, the chain can bear a great load, is not easy to stretch, and maintains a long-lasting and accurate transmission ratio. It is resistant to high temperature, oil pollution and chemical corrosion.

[0102] The working principle of the utility model is roughly as follows:

[0103] During operation, the driving member 2 starts and rotates the driving wheel 21. As the driving wheel rotates, the transmission belt 4 starts to move along a predetermined path. The transmission belt is first led out from the driving wheel 21, and transmits power to the fan wheel 31 on the first fan 3, starting the fan;

[0104] After the first fan is started, the transmission belt continues to run and passes through the tension adjustment assembly 5, wherein the tension adjustment wheel 51 is adjusted by the first adjustment block 521 and the first locking member 524 on the adjustment bracket 52 to ensure that the transmission belt maintains appropriate tension;

[0105] Then, the transmission belt continues to move toward the fan wheel 31 of the second fan, and the second fan is also started. In this process, the transmission belt passes through the transmission assembly 6, and the transmission wheel 61 adjusts the travel direction of the transmission belt with the help of the transmission bracket 62 to keep the transmission belt running on the correct path. The position of the transmission bracket is precisely adjusted by the second adjustment block 622 through the second and third locking members 623 and 624 to respond to the dynamic load changes of the system;

[0106] After the transmission belt has completed supplying power to the two fans, it will continue along the path back to the driving wheel 21, forming a closed-loop power transmission system.

[0107] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A dual-fan power mechanism, comprising a main support frame (1) and a collecting port (11) arranged below the main support frame (1), characterized in that: The dual-fan power mechanism also includes: A driving member (2), wherein the driving member (2) is arranged on the main support frame (1); at least two fans (3), the fans (3) being arranged above the main support frame (1), and the fans (3) being connected to the collecting port (11); A driving wheel (21), wherein the driving wheel (21) is arranged on the driving member (2); A fan rotor (31), the fan rotor (31) being arranged on the fan (3), and the fan rotor (31) being located in the middle of the fan (3); a transmission belt (4), the driving wheel (21) being connected to the fan wheel (31) via the transmission belt (4), the driving wheel (21) being slidably connected to the transmission belt (4), and the fan wheel (31) being slidably connected to the transmission belt (4); A tension adjustment component (5), the tension adjustment component (5) being arranged on a side of the main support frame (1) close to the driving member (2) and being used to change the tension of the transmission belt (4); A conduction component, the conduction component is arranged on the upper side of the fan (3) and is used to change the travel direction of the transmission belt (4).

2. A dual-fan power mechanism according to claim 1, characterized in that: The tension adjustment component (5) comprises: At least one tension adjustment wheel (51) is disposed on the fan (3) and is slidably connected to the transmission belt (4); A tension adjustment bracket (52), the tension adjustment wheel (51) bracket being connected to the tension adjustment wheel (51), the tension adjustment bracket (52) being used to change the position of the tension adjustment wheel (51) to adjust the tension of the transmission belt (4).

3. A dual-fan power mechanism according to claim 1, characterized in that: The conductive component also includes: At least one transmission wheel (61) is disposed on the fan (3) and is slidably connected to the transmission belt (4); A conducting bracket (62), the conducting bracket (62) being connected to the conducting wheel (61), and the conducting bracket (62) being used to change the travel direction of the transmission belt (4).

4. A dual-fan power mechanism according to claim 2, characterized in that: The tension adjustment bracket (52) is located on a side of the main support frame (1) close to the driving member (2), the tension adjustment bracket (52) comprises a first adjustment block (521), an adjustment main bracket (522), a first adjustment hole (523) and a first locking member, the first adjustment block (521) is detachably connected to the tension adjustment wheel (51) via the first locking member, the adjustment hole is located on the adjustment main bracket (522), and the adjustment main bracket (522) is connected to the main support frame (1); In the tension adjustment process, the first locking member is first released, allowing the first adjustment block (521) to drive the tension adjustment wheel (51) to move along the adjustment hole; after moving to a desired position, the first locking member is re-locked, thereby fixing the position of the tension adjustment wheel (51).

5. A dual-fan power mechanism according to claim 3, characterized in that: The conductive support (62) comprises a conductive main support (621), a second adjustment block (622), a second locking piece (623), a third locking piece (624), a second adjustment hole (625) and a third adjustment hole (626); the conductive main support (621) is connected to the main support frame (1); the second adjustment block (622) is located on the conductive main support (621); the second adjustment hole (625) is located on the second adjustment block (622); the third adjustment hole (626) is located on the conductive main support (621); the second adjustment block (622) is slidably connected to the conductive main support (621) via the second locking piece (623); the third locking piece (624) is connected to the second adjustment block (622) for further fixing the second adjustment block (622).

6. A dual-fan power mechanism according to claim 3, characterized in that: The contact angle of the conducting wheel (61) relative to the transmission belt (4) is between 30 and 80 degrees.

7. A dual-fan power mechanism according to claim 1, characterized in that: The fan (3) is also provided with a bearing plate (32), and the fan (3) is detachably connected to the main support frame (1) via the bearing plate (32).

8. A dual-fan power mechanism according to claim 2, characterized in that: The transmission belt (4) is one of a toothed belt, a belt, a poly-V belt, and a chain.

9. A floor scrubber, characterized in that: It comprises a dual-fan power mechanism as claimed in any one of claims 1 to 8.

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