Device for realizing multiple actions by single motor

Abstract

The invention discloses a device for achieving multiple actions through a single motor. The device comprises a swing arm gearbox, a clutch gear set, a driving motor and a follow-up gear set, and a working gear and an arc-shaped gear are arranged on the swing arm gearbox; an upper-layer gear of the clutch gear set is in transmission connection with the working gear through a functional gear, the upper-layer gear and a lower-layer gear are arranged on the same rotating shaft, the lower-layer gear is meshed with the arc-shaped gear, a clamping groove is formed in the side portion of the upper-layer gear, a guide channel is formed in the lower-layer gear, part of the structure of the ball is located in the clamping groove, and the other part of the structure of the ball is located in the guide channel. The elastic piece is arranged in the guide channel and connected with the ball; the follow-up gear set is arranged on the motor shaft, and when the motor shaft rotates reversely, if swing of the swing arm gearbox is limited, the ball can be disengaged from the clamping groove, so that the upper-layer gear can continue to rotate. According to the technical scheme, the single motor is used for executing additional arm swinging actions while achieving main working functions, and arm swinging can be automatically stopped without affecting main working output when encountering obstacles.

Description

Technical Field

[0001] The present invention relates to the technical field of gear transmission, and in particular to a device for realizing multiple actions with a single motor. Background Art

[0002] In the field of mechanical automation, motors are commonly used as a power source and are widely used to drive mechanical parts to perform specific actions. For example, in a floor scrubber, the motor can drive the cleaning parts to rotate to achieve the floor cleaning function. However, in some application scenarios, a single action often cannot meet complex work requirements. Take a floor scrubber as an example. Due to the circular design of its surrounding wall, it is difficult to effectively clean the corner area. Therefore, in addition to maintaining the continuous rotation of the cleaning parts, it is necessary to perform additional swing arm actions to swing the cleaning parts to the corners for cleaning, thereby improving cleaning efficiency and coverage.

[0003] In response to the above requirements, some solutions that use a single motor to achieve multiple actions have appeared in the prior art. These solutions usually include a swing arm gearbox, a working gear set arranged on the swing arm gearbox (the working gear set is connected to the cleaning member and is used to drive the cleaning member to rotate), and an arc gear located on the outer peripheral wall of the swing arm gearbox. Its working principle is: when the motor rotates forward, the first functional gear set is connected to the working gear set through a transmission connection to achieve continuous output of the cleaning function; when the motor rotates reversely, the second functional gear set is connected to the working gear and the arc gear of the swing arm gearbox at the same time, and the swing arm gearbox is driven to swing while the cleaning member rotates. However, this design has two potential problems when the swing arm action encounters an obstacle: first, the obstacle may be forced to be pushed, causing damage to the equipment or the environment; second, the second gear set may be forced to stop rotating, affecting the continuous output of the cleaning function. Therefore, there is an urgent need for an optimized design that can automatically stop the swing arm action when encountering an obstacle while ensuring that the main cleaning function is not affected. Summary of the invention

[0004] The main purpose of the present invention is to solve the technical problem that the prior art uses a single motor to simultaneously realize the main working function and perform additional arm swinging movements, and when encountering an obstacle, the arm swinging cannot be automatically stopped without affecting the main working output.

[0005] A first aspect of the present invention provides a device for realizing multiple actions with a single motor, the device for realizing multiple actions with a single motor comprising a swing arm gear box, a clutch gear set, a drive motor and a follower gear set; The swing arm gear box is provided with a rotatable working gear, and an arc-shaped gear is formed on the outer peripheral wall of the swing arm gear box; The clutch gear set comprises an upper gear, a lower gear, a functional gear, an elastic member and a ball. The upper gear is connected to the working gear through the functional gear. The upper gear and the lower gear are arranged on the same rotating shaft. The lower gear meshes with the arc gear. A slot is formed on the side of the upper gear close to the lower gear. The lower gear is formed with a guide channel corresponding to the slot. Part of the structure of the ball is located in the slot, and another part of the structure of the ball is located in the guide channel. The elastic member is arranged in the guide channel and connected to the ball, and is used to drive the ball to move in a direction close to the upper gear. The drive motor has a motor shaft; The follower gear set is arranged on the motor shaft. When the motor shaft rotates forward, the follower gear set can move to a position meshing with the working gear. When the motor shaft rotates reversely, the follower gear set can move to a position meshing with the upper gear. When the motor shaft rotates in the reverse direction, if the swing of the swing arm gear box is limited, the ball can be released from the slot, so that the upper gear can continue to rotate.

[0006] Optionally, the guide channel has a protruding opening for the sphere to protrude, the protruding opening is circular, and the diameter of the protruding opening is smaller than the diameter of the sphere; The center of the sphere is always located in the guide channel.

[0007] Optionally, the slot wall surface of the slot is a concave arc surface.

[0008] Optionally, a slot is formed on the side of the upper gear close to the lower gear, and the card slot is arranged on the bottom wall of the slot; The lower gear includes a gear body and a post arranged on the side of the gear body close to the upper gear, the gear body is meshed with the arc gear, the free end of the post extends into the slot and is spaced apart from the bottom of the slot, and the guide channel extends from the gear body to the free end of the post.

[0009] Optionally, a plurality of the card slots are formed on the bottom wall of the slot; The number of the guide channels, the number of the balls and the number of the elastic members are the same as the number of the slots so as to correspond one to one.

[0010] Optionally, the plurality of slots are arranged in a ring shape surrounding the rotating shaft of the upper gear.

[0011] Optionally, the follower gear set includes a sheet body, a driving gear and a driven gear, the motor shaft rotatably passes through the sheet body, the driving gear and the driven gear are meshed, the driving gear is fixed on the motor shaft, and the driven gear is rotatably disposed on the sheet body; When the motor shaft rotates forward, the driven gear moves to a position meshing with the working gear, and when the motor shaft rotates reversely, the driven gear moves to a position meshing with the upper gear.

[0012] Optionally, the device for realizing multiple actions by a single motor comprises a clutch gear box, the upper gear, the lower gear, the functional gear and the follower gear set are all arranged in the clutch gear box, the drive motor is arranged outside the clutch gear box, and the motor shaft passes through the shell wall of the clutch gear box to be in transmission connection with the follower gear set; An arc-shaped notch is provided on the peripheral wall of the clutch gear box, and the structure of the arc-shaped gear and the working gear provided on the swing arm gear box extends into the clutch gear box through the arc-shaped notch, and the swing distance of the swing arm gear box is less than the length of the arc-shaped notch.

[0013] Optionally, a dustproof structure is further provided on the clutch gear box, and the dustproof structure is used to cover the gap between the peripheral wall of the arc-shaped notch and the outer surface of the swing arm gear box.

[0014] Optionally, the housing of the swing arm gear box has a first side wall connected to one end of the arc gear, and a second side wall connected to the other end of the arc gear, the first side wall is provided with a protruding first abutment, and the second side wall is provided with a protruding second abutment, and both the first abutment and the second abutment are used to abut against the clutch gear box during the swinging of the swing arm gear box to limit the swinging amplitude of the swing arm gear box.

[0015] The technical solution provided by the embodiment of the present application has at least the following advantages: Normal working state (motor forward rotation): the driving motor directly drives the working gear to rotate through the follower gear set to realize the rotation cleaning of the cleaning part. At the same time, the working gear drives the functional gear to rotate, and then drives the upper gear to rotate. The upper gear abuts against the ball through its slot, and the ball and the guide channel of the lower gear are mutually limited, thereby driving the lower gear to rotate synchronously. The lower gear then drives the arc gear to swing the swing arm gear box in the opposite direction to the rotation direction of the motor shaft (reverse), swinging the cleaning part to the bottom of the machine body.

[0016] Other working states (motor reverse rotation): The driving motor drives the upper gear to rotate through the follower gear set. The upper gear drives the functional gear, which in turn drives the working gear to rotate, maintaining the rotating cleaning function of the cleaning element. At the same time, the upper gear drives the lower gear to rotate through the connection between the ball and the slot, and then drives the arc gear, so that the swing arm gear box swings in the opposite direction to the rotation direction of the motor shaft (forward), swinging the cleaning element to the outside of the body to achieve cleaning of the corners.

[0017] Protection mechanism when encountering obstacles: Regardless of the working state, once the swing arm gearbox encounters an obstacle, the resistance will be transmitted to the lower gear through the arc gear, and then to the ball. When the resistance exceeds the elastic force provided by the elastic member, the ball will be disengaged from the slot of the upper gear. This makes the rotation of the upper gear unaffected, while the lower gear stops rotating, and the swing arm gearbox stops swinging immediately.

[0018] In addition, when the swing arm gearbox encounters an obstacle, the upper gear continues to rotate while the lower gear stops rotating, and the ball repeatedly enters and exits the slot. This cycle produces a clearly identifiable clicking sound. This sound mechanism cleverly serves as a reminder, alerting the user in time that an obstacle has been encountered during the swing arm process, prompting the user to check and remove the obstacle to restore the normal working state of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a device for realizing multiple actions with a single motor according to the present invention; Figure 2 for Figure 1 The schematic diagram of the structure after the dustproof structure is omitted; Figure 3 for Figure 2 The schematic diagram of the structure after omitting some structures (the driving motor rotates forward at this time); Figure 4 for Figure 3 A schematic diagram of the structure when some structures are omitted and the motor is reversed; Figure 5 for Figure 1 A cross-sectional view after omitting some structures; Figure 6 for Figure 5 A partial enlarged view of the middle A; Figure 7 for Figure 5 Exploded view with some structures omitted.

[0021] Description of Figure Numbers: 1. Swing arm gear box; 11. Arc gear; 12. First side wall; 13. Second side wall; 2. Working gear; 3. Clutch gear set; 31. Upper gear; 311. Slot; 312. Slot; 32. Lower gear; 321. Guide channel; 322. Extension port; 323. Gear body; 324. Insert column; 33. Functional gear; 34. Elastic member; 35. Ball; 4. Driving motor; 41. Motor shaft; 5. Follower gear set; 51. Plate; 52. Driving gear; 53. Driven gear; 6. Clutch gear box; 61. Arc notch; 7. Dust-proof structure.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, which must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] The present invention provides a device for realizing multiple actions by a single motor.

[0027] In the embodiment of the present invention, Figures 1 to 7 As shown, the device for realizing multiple actions by a single motor includes It includes a swing arm gear box 1, a clutch gear set 3, a drive motor 4 and a follower gear set 5; The swing arm gear box 1 is provided with a rotatable working gear 2, and an arc-shaped gear 11 is formed on the outer peripheral wall of the swing arm gear box 1; The clutch gear set 3 includes an upper gear 31, a lower gear 32, a functional gear 33, an elastic member 34 and a ball 35. The upper gear 31 is connected to the working gear 2 through the functional gear 33. The upper gear 31 and the lower gear 32 are coaxially arranged. The lower gear 32 is meshed with the arc gear 11. A slot 311 is formed on the side of the upper gear 31 close to the lower gear 32. A guide channel 321 corresponding to the slot 311 is formed on the lower gear 32. Part of the structure of the ball 35 is located in the slot 311, and another part of the structure of the ball 35 is located in the guide channel 321. The elastic member 34 is arranged in the guide channel 321 and connected to the ball 35, so as to drive the ball 35 to move in a direction close to the upper gear 31. The driving motor 4 has a motor shaft 41; The follower gear set 5 is arranged on the motor shaft 41. When the motor shaft 41 rotates forward, the follower gear set 5 can move to a position meshing with the working gear 2. When the motor shaft 41 rotates reversely, the follower gear set 5 can move to a position meshing with the upper gear 31. When the motor shaft 41 rotates in the reverse direction, if the swing of the swing arm gear box 1 is limited, the ball 35 can be released from the slot 311 so that the upper gear 31 can continue to rotate.

[0028] Specifically, the elastic member 34 can be a compression spring, a torsion spring, a rubber block or other elastic structures. The arc gear 11 is a gear structure in the shape of an arc.

[0029] Specifically, the operation process of a device that realizes multiple actions with a single motor can be divided into two main stages: Motor forward rotation stage: The driving motor 4 directly drives the working gear 2 to rotate through the follower gear set 5 to achieve the main cleaning function. At the same time, the working gear 2 drives the functional gear 33 and the upper gear 31 to rotate. The upper gear 31 drives the lower gear 32 to rotate synchronously through the cooperation of the card slot 311 and the ball 35, and then drives the arc gear 11 to make the swing arm gear box 1 swing to the bottom of the body (referring to the body of the cleaning robot).

[0030] Motor reversal stage: The driving motor 4 drives the upper gear 31 to rotate through the follower gear set 5. The upper gear 31 drives the working gear 2 to rotate through the functional gear 33 to maintain the cleaning function. At the same time, the upper gear 31 drives the lower gear 32 to rotate through the connection between the ball 35 and the slot 311, driving the arc gear 11, so that the swing arm gear box 1 swings outward from the periphery of the machine body to achieve corner cleaning.

[0031] The technical solution of the present application has many advantages. First, the design realizes multi-functional integration, and the cleaning and two swing arm effects are completed by the forward and reverse rotation of a single motor, which significantly simplifies the equipment structure and reduces energy consumption and cost. Compared with the design using multiple motors, this solution can reduce costs and energy consumption. Secondly, the device has an intelligent self-protection function. When the swing arm gearbox 1 encounters an obstacle, the mechanism of the ball 35 coming out of the slot 311 of the upper gear 31 effectively avoids the continuous pushing of the obstacle, reduces the risk of damage to the equipment and the environment, and ensures that the main cleaning function is not affected, thereby improving the working efficiency of the equipment. In traditional designs, encountering obstacles may cause the entire system to stop, while this design can keep at least some functions running normally. In addition, the device also has an automatic recovery function. After the obstacle is removed, the design of the elastic member 34 pushing the ball 35 back into the slot 311 enhances the adaptability of the equipment, reduces the need for manual intervention, and saves operation time compared to systems that require manual reset. The present application also innovatively adopts a mechanical sound reminder mechanism. The sound produced by the ball 35 repeatedly entering and exiting the slot 311 when encountering an obstacle provides a simple and effective warning method for the device.

[0032] Optionally, the guide channel 321 has a protruding opening 322 for the sphere 35 to protrude, the protruding opening 322 is circular, and the diameter of the protruding opening 322 is smaller than the diameter of the sphere 35; The center of the sphere 35 is always located in the guide channel 321 .

[0033] Specifically, “the center of the sphere 35 is always located in the guide channel 321 ” means that no matter how the sphere 35 moves, its geometric center will not exceed the range of the guide channel 321 .

[0034] The main purpose of this structural design is to prevent the ball 35 from being separated from the lower gear 32. By limiting the range of motion of the ball 35, it is ensured that the ball 35 is always connected to the lower gear 32, and even when the ball 35 is disengaged from the slot 311 of the upper gear 31, it will not be completely separated from the lower gear 32. This design greatly improves the reliability and safety of the device and prevents the ball 35 from accidentally falling off or being lost during operation. At the same time, it also ensures that the ball 35 can be quickly re-engaged with the slot 311 of the upper gear 31 when needed, achieving the reliability and rapid responsiveness of the clutch function.

[0035] It should be noted that the design of the present application is not limited to this. In other embodiments, the diameter of the extension port 322 may also be equal to or greater than the diameter of the sphere 35. During the installation process, it is only necessary to limit the distance between the upper gear 31 and the lower gear 32 in the direction of the rotation axis to prevent the distance between the upper gear 31 and the lower gear 32 from being too large, causing the sphere 35 to fall out from between the upper gear 31 and the lower gear 32.

[0036] Optionally, the slot wall surface of the locking slot 311 is a concave arc surface, which may be a spherical surface or a conical surface.

[0037] It is not difficult to understand that the design of the inner wall surface of the slot 311 as an arc surface increases the contact area between the ball 35 and the slot wall of the slot 311, improves the force transmission efficiency, and makes the connection between the upper gear 31 and the lower gear 32 more stable and reliable. Secondly, the arc design reduces stress concentration, reduces the wear of the ball 35 and the slot wall of the slot 311 during operation, and extends the service life of the components. Finally, the concave arc surface is also conducive to the ball 35 to be more smoothly separated from the slot 311 when needed, improving the response speed and reliability of the clutch gear set 3.

[0038] Optionally, a slot 312 is formed on the side of the upper gear 31 close to the lower gear 32, and the card slot 311 is arranged on the bottom wall of the slot 312; The lower gear 32 includes a gear body 323 and a column 324 arranged on the side of the gear body 323 close to the upper gear 31, the gear body 323 is meshed with the arc gear 11, the free end of the column 324 extends into the slot 312 and is spaced apart from the bottom of the slot 312, and the guide channel 321 extends from the gear body 323 to the free end of the column 324.

[0039] Specifically, the slot 312 formed on the upper gear 31 and the pin 324 on the lower gear 32 form a special matching structure. This design increases the connection stability between the upper and lower gears 32 while retaining the relative rotation ability between the two. Compared with simple axial stacking, this slot 312-pin 324 structure can better resist radial forces and reduce the shaking between gears, thereby improving the accuracy and reliability of transmission. When running at high speed, the traditional axial stacking design may cause obvious radial offset between gears, but by adopting the structure of this embodiment, this offset can be significantly reduced, thereby improving the stability of the overall operation.

[0040] Furthermore, the design of the guide channel 321 extending from the gear body 323 to the free end of the plug 324 significantly increases the movement space of the ball 35. This extended guide channel 321 not only provides a longer stroke for the ball 35, but also increases the effective length of the elastic member 34. Compared with the traditional design limited to the thickness of the gear body 323, this solution can greatly increase the stroke of the ball 35. A longer stroke means that the system can cope with a wider range of obstacles, improving the adaptability and safety of the device. At the same time, the longer effective length of the elastic member 34 can provide a more stable elastic force, making the clutch process smoother and more controllable.

[0041] Finally, the spacing between the pin 324 and the bottom of the slot 312 creates a closed space, which can effectively prevent dust and impurities from entering the working area of ​​the sphere 35 and the slot 311. This dust-proof design is particularly important in the application environment of cleaning equipment. Compared with the open design, this solution can significantly reduce dust accumulation in the working area, extend the service life of the components, and reduce the maintenance frequency. Under the same working environment, after adopting this design, the maintenance interval can be significantly extended, reducing equipment downtime and maintenance costs.

[0042] Optionally, a plurality of the card slots 311 are formed on the bottom wall of the slot 312; The number of the guide channels 321 , the number of the balls 35 , and the number of the elastic members 34 are all the same as the number of the slots 311 , so as to correspond one to one.

[0043] Specifically, in this embodiment, when the number of the slots 311 is 3, the number of the guide channels 321, the spheres 35 and the elastic members 34 is also 3; when the number of the slots 311 is 4, the number of the guide channels 321, the spheres 35 and the elastic members 34 is also 4. One elastic member 34 is arranged in one guide channel 321. When the swing arm gear box 1 does not encounter any obstacles, one sphere 35 is stuck in one slot 311 and abuts against one elastic member 34.

[0044] A plurality of slots 311 are provided on the bottom wall of the slot 312, rather than a single slot 311. This design significantly increases the number of connection points between the upper and lower gears 32. The multi-point connection structure can more evenly disperse the force generated during the transmission process, effectively reducing the stress borne by a single point. By dispersing the force, local wear can be reduced and the service life of the gear assembly can be extended. For example, if a single-point connection design may show obvious wear after long-term use, a multi-point connection design can disperse this wear to multiple points, and the degree of wear at each point will be reduced accordingly.

[0045] Secondly, the number of guide channels 321, spheres 35 and elastic members 34 is the same as the number of slots 311 and corresponds one to one. This design ensures the balance of the transmission system. Each group of slots 311, guide channels 321, spheres 35 and elastic members 34 forms an independent transmission unit. Multiple units working at the same time can provide a more stable and reliable transmission effect. Compared with single-point transmission, multi-point transmission can effectively reduce jitter and vibration during the transmission process and improve the running stability of the entire system. This is especially important for cleaning equipment that requires precise control, which can improve the consistency of the cleaning effect.

[0046] Furthermore, the multi-point transmission structure enhances the redundancy and fault tolerance of the system. In actual use, if a transmission unit fails or its performance deteriorates, other normally working units can still guarantee the basic functions of the system. This design greatly improves the reliability and continuous working ability of the device. Compared with single-point transmission, even if some components have problems, multi-point transmission can still maintain a certain degree of normal operation, reducing the risk of paralysis of the entire system due to single-point failure.

[0047] Optionally, the plurality of slots 311 are arranged in a ring shape surrounding the rotation axis of the upper gear 31 .

[0048] It is not difficult to understand that the design of the annular arrangement achieves uniform distribution of force. When the upper gear 31 rotates, the force acting on each slot 311 will be evenly distributed along the circumference. This uniform distribution greatly reduces the problem of local stress concentration and effectively reduces the risk of gear deformation and wear. Compared with non-annular distribution, such as random distribution or linear distribution, the annular arrangement can better balance the force of the entire system and extend the service life of the gear. For example, under long-term high-speed operation, the annular arrangement can significantly reduce the uneven wear of the gears and maintain the stability of the transmission efficiency.

[0049] Secondly, the annular arrangement improves the dynamic balance of the system. Since the slots 311 are evenly distributed on the circumference, the system can maintain a good balance regardless of the rotational position of the gear. This balance is crucial to reducing vibration and noise, especially when running at high speeds. Compared with non-uniform distribution, the annular arrangement can significantly reduce the vibration amplitude of the equipment during operation, improve the stability of the cleaning effect, and also reduce unnecessary impact on other components, extending the service life of the entire equipment.

[0050] Optionally, the follower gear set 5 includes a sheet body 51, a driving gear 52 and a driven gear 53, the motor shaft 41 rotatably passes through the sheet body 51, the driving gear 52 and the driven gear 53 are meshed, the driving gear 52 is fixed on the motor shaft 41, and the driven gear 53 is rotatably provided on the sheet body 51; When the motor shaft 41 rotates forward, the driven gear 53 moves to a position meshing with the working gear 2 , and when the motor shaft 41 rotates reversely, the driven gear 53 moves to a position meshing with the upper gear 31 .

[0051] Specifically, when the motor shaft 41 rotates forward (assuming that forward rotation is clockwise rotation), the working process is as follows: 1. The motor shaft 41 drives the driving gear 52 to rotate clockwise.

[0052] 2. The driving gear 52 drives the driven gear 53 to rotate counterclockwise.

[0053] 3. Since there is a certain friction force between the driven gear 53 and the sheet body 51, the rotation of the driven gear 53 will drive the sheet body 51 to start rotating clockwise.

[0054] 4. The rotation of the plate body 51 causes the driven gear 53 to move along the circumferential direction of the motor shaft 41 until the driven gear 53 meshes with the working gear 2.

[0055] 5. Once the driven gear 53 is meshed with the working gear 2, the sheet 51 stops rotating, and the driven gear 53 continues to drive the working gear 2 to rotate, thereby achieving a cleaning function.

[0056] When the motor shaft 41 is reversed, the process is similar but in the opposite direction: 1. The motor shaft 41 drives the driving gear 52 to rotate counterclockwise.

[0057] 2. The driving gear 52 drives the driven gear 53 to rotate clockwise.

[0058] 3. The rotation of the driven gear 53 drives the plate body 51 to rotate counterclockwise.

[0059] 4. The rotation of the sheet body 51 causes the driven gear 53 to move along the circumference of the motor shaft 41 until the driven gear 53 meshes with the upper gear 31 .

[0060] 5. After the driven gear 53 is meshed with the upper gear 31, the sheet 51 stops rotating, and the driven gear 53 continues to drive the upper gear 31 to rotate, thereby realizing the swing arm function.

[0061] The design of this follower gear set 5 brings about many technical effects and advantages. First, it realizes two different functions through a motor and a set of follower gears, greatly simplifies the equipment structure, reduces the number of parts, and thus reduces the manufacturing cost and potential failure rate. Secondly, by utilizing the characteristics of the motor's forward and reverse automatic switching working mode, no additional switching mechanism is required, which improves the reliability and response speed of the system. This design also cleverly utilizes the limited space, realizes the position change of the driven gear 53 through the rotation of the sheet body 51, so that a single mechanism can be docked with multiple functional components, improving the space utilization efficiency. The progressive movement of the driven gear 53 ensures the smoothness during function switching, reduces impact and noise, and improves the user experience and equipment life. In addition, by adjusting the design parameters of the sheet body 51 and the driven gear 53, the moving range and meshing position of the driven gear 53 can be easily changed, making this design highly adaptable and able to meet different application requirements.

[0062] Optionally, the device for realizing multiple actions by a single motor includes a clutch gear box 6, the upper gear 31, the lower gear 32, the functional gear 33 and the follower gear set 5 are all arranged in the clutch gear box 6, the drive motor 4 is arranged outside the clutch gear box 6, and the motor shaft 41 passes through the shell wall of the clutch gear box 6 to be in transmission connection with the follower gear set 5; An arc-shaped notch 61 is provided on the peripheral wall of the clutch gear box 6 , and the structure of the arc-shaped gear 11 and the working gear 2 provided on the swing arm gear box 1 extends into the clutch gear box 6 through the arc-shaped notch 61 . The swing distance of the swing arm gear box 1 is less than the length of the arc-shaped notch 61 .

[0063] It is not difficult to understand that this structural design has good sealing and dustproof properties. In addition to the necessary openings, the clutch gear box 6 can effectively isolate the internal gear system from the external environment, greatly reducing the impact of harmful substances such as dust and moisture on the core transmission components. This is especially important for cleaning equipment working in complex environments, which can significantly improve the durability and working stability of the equipment. At the same time, this closed design is also conducive to the centralized management of lubricating oil, improves the lubrication effect, and reduces the consumption and leakage risk of lubricating oil.

[0064] Optionally, a dustproof structure 7 is further provided on the clutch gear box 6 , and the dustproof structure 7 is used to cover the gap between the peripheral wall of the arc-shaped notch 61 and the outer surface of the swing arm gear box 1 .

[0065] Specifically, there are many implementations of the dustproof structure 7, which can be a sealing ring made of flexible materials such as rubber or silicone, installed on the peripheral wall of the arc-shaped notch 61. This sealing ring can be closely attached to the outer surface of the swing arm gearbox 1, deformed with the movement of the swing arm, and always maintain a good sealing effect. Alternatively, it can be a pleated dust cover made of flexible materials such as nylon cloth or rubber, one end of which is fixed to the clutch gearbox 6 and the other end is connected to the swing arm gearbox 1. This design can be extended and retracted with the movement of the swing arm to effectively cover the gap.

[0066] It is not difficult to understand that the dustproof structure 7 significantly improves the dustproof ability of the entire device. By effectively covering the gap between the arc notch 61 and the swing arm gear box 1, the possibility of harmful substances such as dust and moisture entering the clutch gear box 6 is greatly reduced. This is particularly important for cleaning equipment working in complex environments, which can effectively protect the internal gear system, extend the service life of each component, and improve the reliability and durability of the entire device.

[0067] Optionally, the housing of the swing arm gear box 1 has a first side wall 12 connected to one end of the arc gear 11, and a second side wall 13 connected to the other end of the arc gear 11, the first side wall 12 is provided with a protruding first abutment, and the second side wall 13 is provided with a protruding second abutment, and both the first abutment and the second abutment are used to abut against the clutch gear box 6 during the swinging of the swing arm gear box 1 to limit the swinging amplitude of the swing arm gear box 1.

[0068] The first abutment (not shown) and the second abutment (not shown) can be implemented in various forms. Common implementations include simple protrusion structures, such as cylindrical or rectangular protrusions. This design is simple and easy to manufacture, and can effectively limit the swing range. Another way is an adjustable bolt or screw structure, which allows the swing range to be precisely controlled by adjusting the extension length of the bolt. This design provides higher flexibility and adjustability. Buffer pads made of elastic materials, such as rubber or polyurethane pads, can also be used. This design can not only limit the swing range, but also provide a buffering effect when abutting, reducing impact and noise. In addition, it can also be designed as a structure with rollers that can roll when abutting to reduce friction and wear. These different implementations can be selected and combined according to specific application requirements and working environments.

[0069] By providing abutments on both sides of the swing arm gearbox 1, the swing amplitude of the swing arm gearbox 1 is effectively limited to prevent mechanical damage or functional failure caused by excessive swinging. This mechanical limit is more reliable and direct than electronic control and is not affected by electrical system failures. Secondly, when the first abutment or the second abutment abuts against the clutch gearbox 6, it is equivalent to providing a physical obstacle for the swing. This sudden resistance will cause the transmission between the upper gear 31 and the lower gear 32 to be interrupted. The ball 35 will be disengaged from the slot 311, so that the upper gear 31 can continue to rotate, while the lower gear 32 stops rotating, thereby avoiding the problems that may be caused by the continuous swing of the swing arm gearbox 1. This design cleverly utilizes the clutch mechanism of the device itself, automatically cutting off the power transmission when the maximum swing angle is reached, which not only protects the equipment but also avoids unnecessary energy consumption. In addition, this design also provides the operator with clear tactile and auditory feedback. When the operator feels the resistance caused by the abutment or hears the corresponding sound, he can immediately realize that the swing arm has reached the limit position, so as to adjust the operation in time. Finally, this structural design is simple and reliable, easy to manufacture and maintain, does not require complex sensors or control systems, reduces costs and failure rates, and improves the durability and reliability of the entire device.

[0070] In summary, if the swing arm gear box 1 encounters an obstacle during the swinging process, the transmission between the upper gear 31 and the lower gear 32 will be interrupted, and the working gear 2 will continue to rotate and output. However, when the obstacle is removed, the transmission between the upper gear 31 and the lower gear 32 will continue. After that, the first abutment or the second abutment will abut against the clutch gear box 6, and the swing angle of the swing arm gear box 1 will be reduced, thereby interrupting the transmission between the upper gear 31 and the lower gear 32 again.

[0071] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A device for realizing multiple actions with a single motor, characterized in that: include: A swing arm gear box (1), wherein a rotatable working gear (2) is provided on the swing arm gear box (1), and an arc-shaped gear (11) is formed on the outer peripheral wall of the box body of the swing arm gear box (1); A clutch gear set (3), the clutch gear set (3) comprising an upper gear (31), a lower gear (32), a functional gear (33), an elastic member (34) and a sphere (35), the upper gear (31) being transmission-connected to the working gear (2) via the functional gear (33), the upper gear (31) and the lower gear (32) being coaxially arranged, the lower gear (32) being meshed with the arc gear (11), the upper gear (31) being close to the lower gear (32) A slot (311) is formed on the side of the lower gear (32), a guide channel (321) corresponding to the slot (311) is formed on the lower gear (32), a part of the structure of the ball (35) is located in the slot (311), another part of the structure of the ball (35) is located in the guide channel (321), and the elastic member (34) is arranged in the guide channel (321) and connected with the ball (35) to drive the ball (35) to move in a direction close to the upper gear (31); A drive motor (4), wherein the drive motor (4) has a motor shaft (41); A follower gear set (5), the follower gear set (5) is arranged on the motor shaft (41), when the motor shaft (41) rotates forward, the follower gear set (5) can move to a position meshing with the working gear (2), when the motor shaft (41) rotates reversely, the follower gear set (5) can move to a position meshing with the upper gear (31); wherein, When the motor shaft (41) rotates in the reverse direction, if the swing of the swing arm gear box (1) is limited, the ball (35) can be disengaged from the slot (311), so that the upper gear (31) can continue to rotate.

2. The device for realizing multiple actions with a single motor according to claim 1, characterized in that: The guide channel (321) has a protruding opening (322) for the ball (35) to protrude, the protruding opening (322) is circular, and the diameter of the protruding opening (322) is smaller than the diameter of the ball (35); The center of the sphere (35) is always located in the guide channel (321).

3. The device for realizing multiple actions with a single motor according to claim 1, characterized in that: The groove wall surface of the clamping groove (311) is a concave arc surface.

4. The device for realizing multiple actions with a single motor according to claim 1, characterized in that: A slot (312) is formed on the side of the upper gear (31) close to the lower gear (32), and the clamping slot (311) is arranged on the bottom wall of the slot (312); The lower gear (32) includes a gear body (323) and a column (324) provided on the side of the gear body (323) close to the upper gear (31), the gear body (323) is meshed with the arc gear (11), the free end of the column (324) extends into the slot (312) and is spaced apart from the bottom of the slot (312), and the guide channel (321) extends from the gear body (323) to the free end of the column (324).

5. The device for realizing multiple actions by a single motor according to claim 4, characterized in that: A plurality of the card slots (311) are formed on the bottom wall of the slot (312); The number of the guide channels (321), the number of the balls (35) and the number of the elastic members (34) are all the same as the number of the slots (311) so as to correspond one to one.

6. The device for realizing multiple actions by a single motor according to claim 5, characterized in that: The plurality of slots (311) are arranged in a ring shape surrounding the rotating shaft of the upper gear (31).

7. The device for realizing multiple actions by a single motor according to claim 1, characterized in that: The follower gear set (5) comprises a sheet body (51), a driving gear (52) and a driven gear (53); the motor shaft (41) rotatably passes through the sheet body (51); the driving gear (52) and the driven gear (53) are meshed; the driving gear (52) is fixed on the motor shaft (41); and the driven gear (53) is rotatably arranged on the sheet body (51); When the motor shaft (41) rotates forward, the driven gear (53) moves to a position meshing with the working gear (2); when the motor shaft (41) rotates reversely, the driven gear (53) moves to a position meshing with the upper gear (31).

8. The device for realizing multiple actions by a single motor according to claim 1, characterized in that: The device for realizing multiple actions with a single motor comprises a clutch gear box (6), wherein the upper gear (31), the lower gear (32), the functional gear (33) and the follower gear set (5) are all arranged in the clutch gear box (6), the drive motor (4) is arranged outside the clutch gear box (6), and the motor shaft (41) passes through the shell wall of the clutch gear box (6) to be transmission-connected with the follower gear set (5); An arc-shaped notch (61) is provided on the peripheral wall of the clutch gear box (6); the structure of the arc-shaped gear (11) and the working gear (2) provided on the swing arm gear box (1) extends into the clutch gear box (6) through the arc-shaped notch (61); and the swing distance of the swing arm gear box (1) is less than the length of the arc-shaped notch (61).

9. The device for realizing multiple actions by a single motor according to claim 8, characterized in that: The clutch gear box (6) is also provided with a dustproof structure (7), and the dustproof structure (7) is used to cover the gap between the peripheral wall of the arc-shaped notch (61) and the outer surface of the swing arm gear box (1).

10. The device for realizing multiple actions with a single motor according to claim 8, characterized in that: The housing of the swing arm gear box (1) comprises a first side wall (12) connected to one end of the arc gear (11), and a second side wall (13) connected to the other end of the arc gear (11); the first side wall (12) is provided with a protruding first abutment; the second side wall (13) is provided with a protruding second abutment; the first abutment and the second abutment are both used to abut against the clutch gear box (6) during the swinging of the swing arm gear box (1) to limit the swinging amplitude of the swing arm gear box (1).

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