A type of trash can

Abstract

This utility model relates to a trash can, including a main body with a cavity for containing trash and a first air outlet. The trash can also includes a fan, a drive unit, a transmission unit, and an operating unit disposed on the main body. The drive unit is movably disposed relative to the transmission unit and the fan, and has a transmission position that is in transmission engagement with the fan and a clearance position that is not in transmission engagement with the fan. The drive unit located in the transmission position is respectively connected to the fan and the transmission unit, and the transmission unit is connected to the operating unit. The operating unit is driven to move the transmission unit, which in turn drives the drive unit located in the transmission position. The drive unit's movement causes the fan to rotate, and the fan's rotation generates suction to draw air out of the cavity through the first air outlet. The fan's inertial rotation causes the drive unit to move from the transmission position to the clearance position, thereby limiting the drive unit's movement under the fan's drive and thus limiting the drive unit's movement of the operating unit, solving the problem of poor user control experience.

Description

Technical Field

[0001] This utility model relates to the field of trash can technology, specifically to a trash can. Background Technology

[0002] In daily life, trash cans are used to collect household garbage. To expel air from the can, a fan is usually installed inside. The fan is driven by an operating mechanism to generate suction, which draws the air out of the can. However, when the air is completely drawn out and the operating mechanism stops, the operating mechanism and the transmission structure between the operating mechanism and the fan also stop immediately. But the fan still has the inertia to continue rotating. At this time, the fan will exert a certain impact force on the transmission structure, which can easily cause damage to the transmission structure. At the same time, this impact force is transmitted to the operating mechanism through the transmission structure, causing the already stopped operating mechanism to continue to move, resulting in a poor user experience. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] This utility model mainly addresses the shortcomings of the prior art, specifically relating to a trash can. It solves the problem that in the prior art, when the air is completely sucked out and the operating part is stopped, the fan still has the inertial tendency to continue rotating. At this time, the fan will exert a certain impact force on the transmission structure, which can easily cause damage to the transmission structure. At the same time, this impact force is transmitted to the operating part through the transmission structure, causing the already stopped operating part to continue to move, resulting in a poor user experience.

[0005] (II) Technical Solution

[0006] This utility model relates to a trash can, comprising a main body, the main body including a cavity for containing trash, the cavity having a first air outlet; the trash can further includes a fan, a drive unit, a transmission unit, and an operating unit disposed on the main body, the drive unit being movably disposed relative to the transmission unit and the fan, and having a transmission position for engaging with the fan and a clearance position for disengaging from the fan; the drive unit located at the transmission position is respectively connected to the fan and the transmission unit, the transmission unit being connected to the operating unit; the operating unit is driven to move the transmission unit, the movement of the transmission unit drives the drive unit located at the transmission position, the movement of the drive unit drives the fan to rotate, the fan rotation generates suction to draw air from the cavity through the first air outlet; the fan's inertial rotation drives the drive unit from the transmission position to the clearance position, thereby restricting the drive unit's movement under the fan's drive, and thus restricting the drive unit from driving the operating unit.

[0007] The advantages are that after the operating unit stops driving, even if the fan has the inertial tendency to continue rotating, the fan will exert a certain impact force on the driving unit, causing the driving unit to move to a position where it is disengaged from the fan's transmission. This prevents the fan's subsequent rotational force due to inertia from being transmitted to the driving unit and the operating unit. Consequently, the operating unit will not continue to move after stopping, allowing the fan to continue rotating unrestricted by inertia, resulting in a better user experience. Simultaneously, the fan will not transmit impact force to the driving unit during inertial driving, thus avoiding damage to the transmission structure between the fan and the driving unit. Even when the operating unit stops driving, the fan will continue to rotate until it naturally stops, preventing it from stopping immediately and reducing the possibility of fan damage, further enhancing the user experience.

[0008] In one optional embodiment, the drive unit is slidably connected to the main body; the inertial rotation of the fan causes the drive unit to slide from the transmission position to the avoidance position, thereby restricting the operation of the drive unit under the drive of the fan, and thus restricting the drive unit from driving the operation of the operating unit.

[0009] In one optional embodiment, the main body is provided with a sliding groove, and the driving unit is slidably connected to the main body through the sliding groove, with the two ends of the sliding groove corresponding to the transmission position and the avoidance position, respectively. The inertial rotation of the fan drives the driving unit located at the transmission position to slide along the sliding groove from the transmission position to the avoidance position, thereby restricting the operation of the driving unit under the drive of the fan, and thus restricting the driving unit from driving the operation of the operating unit. The operation of the operating unit drives the transmission unit to run, and the operation of the transmission unit drives the driving unit located at the avoidance position to slide along the sliding groove to the transmission position to establish a transmission connection with the fan and drive the driving unit to run. The operation of the driving unit drives the fan to rotate, and the rotation of the fan generates suction to draw the air in the cavity out through the first air outlet.

[0010] In one optional embodiment, the sliding groove is inclined away from the fan along the direction from the transmission part to the fan, and the end of the sliding groove away from the fan is the avoidance position, and the end closer to the fan is the transmission position.

[0011] In one optional embodiment, the driving unit is a first double gear, which includes a first tooth and a second tooth that rotate synchronously. The first tooth is meshed with the transmission unit. When the driving unit is in the transmission position, the second tooth is connected to the fan. When the driving unit is in the avoidance position, the second tooth is disengaged from the fan.

[0012] In one optional embodiment, the transmission unit is a gear set, which is connected to the first double gear in a transmission connection, wherein the number of teeth in the first gear is less than the number of teeth in the second gear; the first double gear is slidably connected to the main body through a sliding groove.

[0013] When the operating part is driven to rotate, it drives the gear set to run. The gear set drives the first tooth and the second tooth to rotate, and drives the first double gear to slide along the sliding groove from the avoidance position to the transmission position where the second tooth is connected to the fan, so that the first double gear drives the fan to rotate. The fan continues to rotate due to inertia, applying a force to the second tooth to move away from the fan. The second tooth, under the force, drives the first double gear to slide along the sliding groove away from the fan to the avoidance position, thereby restricting the fan from driving the first double gear to rotate, and thus restricting the driving part from driving the operating part to move.

[0014] In one optional embodiment, the transmission unit includes an input gear coaxially arranged with the operating unit and a second double gear meshing with the input gear. The second double gear has a third tooth portion and a fourth tooth portion, wherein the number of teeth in the third tooth portion is less than the number of teeth in the fourth tooth portion. The input gear meshes with the third tooth portion, and the fourth tooth portion meshes with the second tooth portion of the first double gear.

[0015] The fan is coaxially provided with an output gear, and the main body is also provided with a third double gear that meshes with the output gear. The third double gear has a fifth tooth and a sixth tooth. The number of teeth in the fifth tooth is less than the number of teeth in the sixth tooth. The second tooth of the first double gear located at the transmission position meshes with the fifth tooth, and the sixth tooth meshes with the output gear.

[0016] When the operating part is driven to rotate in the first direction, it drives the input gear to rotate in the first direction. The input gear, through meshing with the third tooth, drives the second double gear to rotate in the second direction opposite to the first direction. The second double gear, through the meshing of the fourth tooth and the first tooth, drives the first double gear to rotate around the first direction, and drives the first double gear to slide along the sliding groove from the avoidance position to the transmission position, so that the second tooth meshes with the fifth tooth of the third double gear. The rotation of the first double gear around the first direction, through the meshing of the second tooth and the fifth tooth, drives the third double gear to rotate around the second direction. The rotation of the third double gear around the second direction drives the output gear to rotate around the first direction, thereby driving the fan to rotate around the first direction.

[0017] The fan continues to rotate inertia along the first direction, and the output gear rotates in the same direction, driving the third double gear to rotate around the second direction. The rotation of the third double gear around the second direction causes the fifth tooth to apply a force to the second tooth to move away from the fan. The force on the second tooth causes the first double gear to slide along the sliding groove away from the fan to the avoidance position, thereby restricting the fan from driving the first double gear to rotate, and thus restricting the drive unit from driving the operation unit to move.

[0018] In one optional embodiment, the operating part includes a knob, and a connecting shaft is provided on one side of the knob. The connecting shaft is coaxially connected to an input gear included in the transmission part away from the knob. The knob is driven to rotate, which drives the input gear to rotate synchronously.

[0019] And / or the fan includes a rotating shaft, one end of which is provided with a plurality of fan blades, and the other end of which is provided with an output gear that is connected to the drive unit located at the transmission position.

[0020] In one alternative embodiment, the operating part rotates unidirectionally about its rotation axis; and / or the fan rotates unidirectionally about its rotation axis.

[0021] In one optional embodiment, the main body includes a barrel body and a barrel lid, the cavity is formed inside the barrel body, and the barrel lid is installed at the opening of the barrel body; a first housing is provided on the outer wall of the barrel body having the first air outlet, and an installation cavity is formed between the first housing and the outer wall; the fan, the drive unit, and the transmission unit are disposed in the installation cavity; the operating unit is disposed on the outer wall of the installation cavity and passes through the outer wall to be connected to the transmission unit.

[0022] Alternatively, the main body may include a barrel body and a barrel lid. The barrel body forms the cavity inside, and the barrel lid is installed at the opening of the barrel body. The outer wall of the barrel body with the first air outlet is provided with a second housing, and an air duct is formed between the second housing and the outer wall. The barrel lid is provided with a mounting cavity, and the air duct extends to the top of the barrel body and communicates with the mounting cavity. The fan, the drive unit, and the transmission unit are disposed in the mounting cavity, and the operating unit is disposed on the top of the barrel lid and passes through the barrel lid to be connected to the transmission unit. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the trash can according to an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of a trash can according to an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the drive unit in the trash can in the avoidance position according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the drive unit in the trash can at the transmission position according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram showing the location of the sliding groove in the trash can according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic diagram of the suction device of the trash can from another perspective according to an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of another embodiment of the trash can of this utility model;

[0031] Figure 8 This is a schematic diagram of another embodiment of the trash can according to this utility model from another perspective.

[0032] Explanation of reference numerals in the attached figures:

[0033] 11. Barrel body; 111. First air outlet; 12. Barrel lid; 13. Sliding groove; 14. First shell; 16. Air duct;

[0034] 20. Fan; 201. Output gear; 202. Rotating shaft; 203. Fan blade; 21. Drive unit; 211. First tooth; 212. Second tooth; 22. Transmission unit; 221. Input gear; 222. Second double gear; 2221. Third tooth; 2222. Fourth tooth; 23. Operation unit; 231. Knob; 232. Connecting shaft; 24. Third double gear; 241. Fifth tooth; 242. Sixth tooth. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] This utility model relates to a trash can, including a main body, the main body including a cavity for containing trash, the cavity having a first air outlet 111; the trash can also include a fan 20, a drive unit 21, a transmission unit 22, and an operating unit 23 disposed on the main body, the drive unit 21 being movably disposed relative to the transmission unit 22 and the fan 20, and having a transmission position for engaging with the fan 20 and a clearance position for disengaging from the fan 20; the drive unit 21 located in the transmission position is movably connected to the fan 20 and the transmission unit 22 respectively, the transmission unit 22 being connected to the fan 20 and the operating unit 23 respectively. The operating unit 23 is connected to the transmission unit 22; the operating unit 23 is driven to move the transmission unit 22, the transmission unit 22 drives the drive unit 21 located at the transmission position, the drive unit 21 drives the fan 20 to rotate, the fan 20 generates suction to draw the air in the cavity out through the first air outlet 111; the fan 20 rotates inertia to move the drive unit 21 from the transmission position to the avoidance position, so as to restrict the drive unit 21 from running under the drive of the fan 20, and thus restrict the drive unit 21 from driving the operating unit 23 to move.

[0037] This design ensures that even if the fan 20 continues to rotate due to inertia after the operating unit 23 stops driving, the fan 20 will exert a certain impact force on the driving unit 21, causing the driving unit 21 to move to a position where it is disengaged from the fan 20. Consequently, the rotational force of the fan 20 due to inertia cannot be transmitted to the driving unit 21 and the operating unit 23. Therefore, the operating unit 23 will not continue to move after stopping, allowing the fan 20 to continue rotating unrestricted by inertia, resulting in a better user experience. Simultaneously, the fan 20 will not transmit impact force to the driving unit 21 during inertial driving, thus preventing damage to the transmission structure between the fan 20 and the driving unit 21. Even when the operating unit 23 stops driving, the fan 20 will continue to rotate due to its own inertia until it naturally stops, preventing it from stopping immediately and reducing the possibility of damage to the fan 20, further enhancing the user experience.

[0038] The main body has a cavity for holding garbage. When the garbage is not cleaned for a long time, an odor will be generated in the cavity. The cavity is provided with a first air outlet 111 to expel the odor from the cavity. Alternatively, when a garbage bag is placed in the cavity, the air between the inner wall of the cavity and the outer wall of the garbage bag can be discharged through the first air outlet 111, so that the garbage bag can unfold better in the cavity. The first air outlet 111 can be located on the side wall, bottom wall or top wall of the cavity.

[0039] The fan 20 is used to exhaust the air in the cavity to the outside of the cavity. Therefore, the fan 20 is preferably a suction fan 20 in this example. The suction fan 20 is an existing mature purchased component. The specific structure will not be described in detail here. In this example, the fan 20 is preferably located near the first air outlet 111 to reduce the air flow path, thereby reducing losses and making the air suction efficiency higher. In this example, the fan 20 is preferably located on the outer wall of the cavity and has the first air outlet 111.

[0040] The operating part 23 is used to drive the fan 20 to rotate. In order to facilitate the user to operate from the outside of the main body, the operating part 23 is located on the outer side wall of the main body. The preferred operating part 23 is a knob 231. By rotating the knob 231, the fan 20 is driven to rotate, thereby realizing air suction. This is more in line with the user's operating habits and the operation method is simpler.

[0041] Both the drive unit 21 and the transmission unit 22 are located between the operating unit 23 and the fan 20. The operating unit 23 drives the fan 20 to rotate. The transmission unit 22 connects the operating unit 23 and the drive unit 21, and the drive unit 21 connects the transmission unit 22 and the fan 20. This allows the driving force from the operating unit 23 to be transmitted to the transmission unit 22, then to the drive unit 21, and finally to the fan 20, thus enabling the operating unit 23 to drive the fan 20 to rotate. This design also eliminates the need to integrate the fan 20 and the operating unit 23 in the same location, allowing for a more flexible layout of the trash can. The specific structures of the transmission unit 22 and the drive unit 21 will be detailed later.

[0042] A transmission position is provided so that a transmission chain is formed between the operating unit 23, the transmission unit 22, the drive unit 21, and the fan 20, so that the operating unit 23 can drive the fan 20 to rotate. A clearance position is provided so that the transmission chain formed between the operating unit 23, the transmission unit 22, the drive unit 21, and the fan 20 is disconnected from the connection between the drive unit 21 and the fan 20, so that the driving force of the operating unit 23 cannot be transmitted to the fan 20, and at the same time, the driving force of the fan 20 cannot be transmitted to the operating unit 23. That is, when the operating unit 23 stops, even if the fan 20 has the tendency to continue rotating, the inertial force cannot be transmitted to the operating unit 23, and thus the operating unit 23 cannot be driven to move.

[0043] When the drive unit 21 moves from the avoidance position to the transmission position, it is preferable that the operation unit 23 rotates to drive the transmission unit 22 to rotate, thereby driving the drive unit 21 to slide or move from the avoidance position to the transmission position to change its position. It is understood that a portion of the surface of the drive unit 21 has teeth, and another portion is toothless (not shown in the figure). When the drive unit 21 rotates to the point where the toothed portion engages with the fan 20, the drive unit 21 is in the transmission position. When the drive unit 21 rotates to the point where the toothless portion is opposite to the fan 20, the drive unit 21 cannot drive the fan 20 to rotate, and thus the drive unit 21 is in the avoidance position.

[0044] When the drive unit 21 moves from the transmission position to the avoidance position, it is preferable that the drive unit 21 is driven to slide or move from the transmission position to the avoidance position by the inertial rotation of the fan 20. It can be understood that the drive unit 21 can also rotate from the transmission position to the avoidance position. For the specific structure, please refer to the previous description.

[0045] In one optional embodiment, the drive unit 21 is slidably connected to the main body; the fan 20 rotates by inertia, causing the drive unit 21 to slide from the transmission position to the avoidance position, so as to restrict the operation of the drive unit 21 under the drive of the fan 20, thereby restricting the drive unit 21 from driving the operation unit 23. The drive unit 21 is slidably connected to the main body. Preferably, the rotating part and the main body are connected by a shaft-groove fit, which is simple in structure and easy to assemble.

[0046] In one optional embodiment, the main body is provided with a sliding groove 13, and the driving part 21 is slidably connected to the main body through the sliding groove 13, with the two ends of the sliding groove 13 corresponding to the transmission position and the avoidance position, respectively. The fan 20 rotates by inertia, causing the driving part 21 located at the transmission position to slide from the transmission position along the sliding groove 13 to the avoidance position, thereby restricting the operation of the driving part 21 under the drive of the fan 20, and thus restricting the driving part 21 from driving the operation of the operating part 23. The operating part 23 is driven to drive the transmission part 22 to run, and the operation of the transmission part 22 causes the driving part 21 located at the avoidance position to slide along the sliding groove 13 to the transmission position to establish a transmission connection with the fan 20 and drive the driving part 21 to run. The operation of the driving part 21 drives the fan 20 to rotate, and the rotation of the fan 20 generates suction to draw the air in the cavity out through the first air outlet 111.

[0047] The drive unit 21 includes a slider located at the center of the drive unit 21. The slider is engaged with the sliding groove 13, allowing the drive unit 21 to move along the sliding groove 13 via the slider. The sliding groove 13 is preferably a strip-shaped groove, with one end of the sliding groove 13 being a clearance position and the other end being a transmission position.

[0048] In one optional embodiment, the sliding groove 13 is inclined away from the fan 20 along the direction from the transmission part 22 to the fan 20. The end of the sliding groove 13 away from the fan 20 is the avoidance position, and the end closer to the fan 20 is the transmission position. This allows the fan 20 to rotate under inertial drive, requiring only a small driving force to make the drive part 21 slide or move along the inclined sliding groove 13. In this example, the avoidance position is preferably located at the lowest end of the sliding groove 13, and the transmission position is located at the highest end of the sliding groove 13, making it easier for the drive part 21 to move or slide to the avoidance position more quickly under its own weight.

[0049] In one optional embodiment, the drive unit 21 is a first double gear, which includes a first tooth 211 and a second tooth 212 that rotate synchronously. The first tooth 211 is meshed with the transmission unit 22. When the drive unit 21 is in the transmission position, the second tooth 212 is connected to the fan 20. When the drive unit 21 is in the avoidance position, the second tooth 212 is disengaged from the fan 20. The first tooth 211 and the second tooth 212 are coaxial gears. The number of teeth on the first tooth 211 and the second tooth 212 can be the same or different, as long as the driving force of the transmission unit 22 can be transmitted to the fan 20.

[0050] In one optional embodiment, the transmission unit 22 is a gear set, which is connected to the first double gear. The number of teeth in the first gear 211 is less than the number of teeth in the second gear 212, so that the first double gear forms a differential speed effect. When the transmission unit 22 rotates at a first speed and drives the drive unit 21 to rotate, the drive unit 21 drives the fan 20 to rotate at a second speed due to the difference in the number of teeth between the first gear 211 and the second gear 212. The second speed is greater than the first speed. The first double gear is slidably connected to the main body through the sliding groove 13.

[0051] When the operating part 23 is driven to rotate, it drives the gear set to run. The operation of the gear set drives the first tooth 211 and the second tooth 212 to rotate, and drives the first double gear to slide along the sliding groove 13 from the avoidance position to the transmission position where the second tooth 212 is connected to the fan 20, so that the first double gear drives the fan 20 to rotate. The fan 20 continues to rotate due to inertia, and applies a force to the second tooth 212 to move away from the fan 20. The second tooth 212 is forced to drive the first double gear to slide along the sliding groove 13 away from the fan 20 to the avoidance position, so as to restrict the fan 20 from driving the first double gear to rotate, and thus restrict the driving part 21 from driving the operating part 23 to move.

[0052] In one optional embodiment, the transmission unit 22 includes an input gear 221 coaxially arranged with the operation unit 23 and a second double gear 222 meshing with the input gear 221. The second double gear 222 has a third tooth portion 2221 and a fourth tooth portion 2222, wherein the number of teeth in the third tooth portion 2221 is less than the number of teeth in the fourth tooth portion 2222. The input gear 221 meshes with the third tooth portion 2221, and the fourth tooth portion 2222 meshes with the second tooth portion 212 of the first double gear.

[0053] The fan 20 is coaxially provided with an output gear 201, and the main body is also provided with a third double gear 24 that meshes with the output gear 201. The third double gear 24 has a fifth tooth 241 and a sixth tooth 242. The number of teeth in the fifth tooth 241 is less than the number of teeth in the sixth tooth 242. The second tooth 212 of the first double gear located at the transmission position meshes with the fifth tooth 241, and the sixth tooth 242 meshes with the output gear 201.

[0054] When the operating unit 23 is driven to rotate in the first direction, it drives the input gear 221 to rotate in the first direction. The input gear 221, through meshing with the third tooth 2221, drives the second double gear 222 to rotate in the second direction opposite to the first direction. The second double gear 222, through meshing with the first tooth 211 via the fourth tooth 2222, drives the first double gear to rotate around the first direction, and drives the first double gear to slide along the sliding groove 13 from the avoidance position to the transmission position, so that the second tooth 212 meshes with the fifth tooth 241 of the third double gear 24. The rotation of the first double gear around the first direction, through the meshing of the second tooth 212 with the fifth tooth 241, drives the third double gear 24 to rotate around the second direction. The rotation of the third double gear 24 around the second direction drives the output gear 201 to rotate around the first direction, thereby driving the fan 20 to rotate around the first direction.

[0055] The fan 20 continues to rotate inertia along the first direction. The output gear 201 rotates in the same direction, driving the third double gear 24 to rotate around the second direction. The rotation of the third double gear 24 around the second direction causes the fifth tooth 241 to apply a force to the second tooth 212, moving it away from the fan 20. The second tooth 212, under this force, drives the first double gear to slide along the sliding groove 13 away from the fan 20 to the avoidance position, thereby restricting the fan 20 from driving the first double gear to rotate, and thus restricting the drive unit 21 from driving the operation unit 23 to move.

[0056] Both the second double gear 222 and the third double gear 24 create an acceleration effect, so that when the operating unit 23 rotates one revolution, the fan 20 can be driven to rotate N revolutions (N>1) through the action of the second double gear 222, the first double gear, and the third double gear 24. Specifically, when the operating unit 23 rotates at speed A1, it drives the input gear 221 to rotate at speed A1. The input gear 221 drives the second double gear 222 to rotate at speed A1. The second double gear 222 drives the first double gear to rotate at speed A2. A double gear drives a third double gear 24 to rotate at a speed of A3. The third double gear 24 drives an output gear 201 to rotate at a speed of A4. Finally, the output gear 201 drives a fan 20 to rotate at a speed of A4, where A1 < A2 < A3 < A4. This causes the fan 20 to undergo an acceleration process from A1 to A4 before the operating unit 23 rotates. This allows the operating unit 23 to easily drive the fan 20 to rotate at high speed. Therefore, when the operating unit 23 suddenly stops, the fan 20 has a large inertia due to its high-speed rotation.

[0057] In one optional embodiment, the operating part 23 includes a knob 231, and a connecting shaft 232 is provided on one side of the knob 231. The connecting shaft 232 is coaxially connected to the input gear 221 included in the transmission part 22 at a distance away from the knob 231. The knob 231 is driven to rotate, which drives the input gear 221 to rotate synchronously.

[0058] The knob 231 is the part of the operating part 23 that contacts the user. The knob 231 is a common round knob, as long as it can drive the input gear 221 group to rotate. In this example, its shape and structure are not limited. Considering the anti-slip properties of the knob 231 in contact with the user's hand, a textured anti-slip pattern can be provided on the knob 231. The connecting shaft 232 is connected to the input gear 221 group. Preferably, the connecting shaft 232 is integrally formed on one side of the knob 231. The end of the connecting shaft 232 away from the knob 231 is detachably connected to the input gear 221 group for easy installation. The connecting shaft 232 and the input gear 221 group are connected by a pin, a snap-fit, or a polygonal shaft hole, so that when the knob 231 rotates, it drives the input gear 221 group to rotate synchronously.

[0059] In one optional embodiment, the fan 20 includes a rotating shaft 202, one end of which is provided with a plurality of fan blades 203, and the other end of which is provided with an output gear 201 that is connected to the drive unit 21 located in the transmission position.

[0060] The rotating shaft 202 is connected to the output gear 201 group. Preferably, the rotating shaft 202 is integrally formed on one side of the mounting plate. The end of the rotating shaft 202 away from the mounting plate is detachably connected to the output gear 201 group for easy installation. The rotating shaft 202 and the output gear 201 group are connected by a pin, a snap-fit, or a polygonal shaft hole, so that when the output gear 201 rotates, it drives the mounting plate to rotate synchronously, thereby driving the fan blades 203 on the mounting plate to rotate, so as to achieve air suction. The mounting plate forms a base plate for mounting the fan blades 203. On the other hand, in order to guide the air sucked from the first air outlet 111 to be discharged along the rotation direction of the fan blades 203, the fan blades 203 are set on the mounting plate. The fan blades 203 can be integrally formed on the mounting plate or detachably mounted on the mounting plate. The fan blades 203 are distributed in a windmill shape on the mounting plate.

[0061] In one optional embodiment, the operating part 23 rotates unidirectionally around its rotation axis, making the operating part 23 more controllable and avoiding misoperation. During the unidirectional rotation, the user needs to frequently adjust the position of their hand for the next rotation, so that the rotation speed of the operating part 23 is not too fast, and the speed of the fan 20 is kept within a suitable range, avoiding damage to the fan 20, the transmission part 22, or the drive part 21. Specifically, the unidirectional rotation between the operating part 23 and the input gear 221 can be achieved through a ratchet-pawl engagement.

[0062] In one alternative embodiment, the fan 20 rotates unidirectionally around its rotation axis. Because the fan blades 203 have different shapes, the suction efficiency of the fan 20 varies when it rotates in different directions. Therefore, when the fan 20 is set to rotate unidirectionally, the shape of the fan blades 203 can be optimized specifically for that direction, and higher suction efficiency can be achieved. Specifically, the unidirectional rotation of the fan 20 can be achieved by rotating the operating part 23 unidirectionally, or by using a ratchet-pawl combination.

[0063] In one optional embodiment, the main body includes a barrel 11, and the cavity is formed inside the barrel 11; a first housing 14 is provided on the outer wall of the barrel 11 having the first air outlet 111, and an installation cavity is formed between the first housing 14 and the outer wall; the fan 20, the drive unit 21, and the transmission unit 22 are disposed in the installation cavity; and the operating unit 23 is disposed on the outer wall of the installation cavity and passes through the outer wall to be connected to the transmission unit 22 in a transmission manner.

[0064] The cavity inside the bin 11 is used to store garbage. The operating part 23, the transmission part 22, the drive part 21 and the fan 20 are located on the side wall of the bin 11 to facilitate driving operation.

[0065] The first housing 14 is used to form a cover for mounting the fan 20, the drive unit 21, and the transmission unit 22. On the one hand, it protects the fan 20 and the transmission unit 22, and on the other hand, it prevents the garbage bag from being sucked into the fan 20. The bin body 11 is provided with a partition, and the first air outlet 111 is located on the partition. The partition and the side wall of the bin body 11 form an installation cavity. The side wall of the bin body 11 opposite to the partition is the first housing 14, so that the installation cavity is located inside the bin body 11. At the same time, the fan 20 and the transmission unit 22 are also located inside the bin body 11 to hide the fan 20 and the transmission unit 22, making the overall appearance of the garbage bin more aesthetically pleasing.

[0066] Understandably, the first housing 14 can be located outside the barrel 11, and the first housing 14 and the side wall of the barrel 11 are installed by a connector, including but not limited to screws, buckles, adhesives, magnetic attraction, etc.

[0067] In one optional embodiment, the main body includes a barrel body 11 and a barrel lid 12. The barrel body 11 forms the cavity inside, and the barrel lid 12 is installed at the opening of the barrel body 11. The outer wall of the barrel body 11 with the first air outlet 111 is provided with a second housing, and an air duct 16 is formed between the second housing and the outer wall. The barrel lid 12 is provided with a mounting cavity, and the air duct 16 extends to the top of the barrel body 11 and communicates with the mounting cavity. The fan 20, the drive unit 21, and the transmission unit 22 are disposed in the mounting cavity, and the operating unit 23 is disposed on the top of the barrel lid 12 and passes through the barrel lid 12 to be connected to the transmission unit 22.

[0068] The opening of the bin 11 allows garbage to enter the cavity of the bin 11. The lid 12 is located at the opening and is used to close or open the opening to prevent the odor of the garbage inside the bin 11 from directly hitting the user. At the same time, the lid 12 can also limit the garbage bag installed inside the bin 11. The lid 12 is used to press down the mouth of the garbage bag fitted at the opening of the bin 11 to prevent the bag mouth from coming off the bin 11. The lid 12 has an installation cavity, and the operating part 23 is located on the lid 12. When the fan 20, the drive part 21 and the transmission part 22 are located in the installation cavity, on the one hand, since the lid 12 is generally located high, the user can easily operate it by bending over or squatting down. On the other hand, it is more convenient for the user to remove the lid 12 to clean the bin 11 or replace the garbage bag.

[0069] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A trash can, characterized in that, Includes a main body, the main body including a cavity for containing garbage, the cavity being provided with a first air outlet (111); The trash can also includes a fan (20), a drive unit (21), a transmission unit (22), and an operating unit (23) disposed on the main body. The drive unit (21) is movably disposed relative to the transmission unit (22) and the fan (20), and has a transmission position that is in transmission engagement with the fan (20) and a clearance position that is out of transmission engagement with the fan (20). The drive unit (21) located in the transmission position is in transmission connection with the fan (20) and the transmission unit (22) respectively, and the transmission unit (22) is in transmission connection with the operating unit (23). The operating part (23) is driven to move the transmission part (22), and the operation of the transmission part (22) drives the drive part (21) located at the transmission position to move. The operation of the drive part (21) drives the fan (20) to rotate. The rotation of the fan (20) generates suction to draw the air in the cavity out through the first air outlet (111). The inertial rotation of the fan (20) drives the drive part (21) to move from the transmission position to the avoidance position, so as to restrict the operation of the drive part (21) under the drive of the fan (20), thereby restricting the operation of the operating part (23) driven by the drive part (21).

2. A trash can according to claim 1, characterized in that, The drive unit (21) is slidably connected to the main body; The inertial rotation of the fan (20) causes the drive unit (21) to slide from the transmission position to the avoidance position, thereby restricting the operation of the drive unit (21) under the drive of the fan (20), and thus restricting the operation of the operation unit (23) driven by the drive unit (21).

3. A trash can according to claim 2, characterized in that, The main body is provided with a sliding groove (13), and the driving part (21) is slidably connected to the main body through the sliding groove (13), and the two ends of the sliding groove (13) correspond to the transmission position and the avoidance position respectively; The fan (20) rotates due to inertia, causing the drive unit (21) located at the transmission position to slide from the transmission position along the sliding groove (13) to the avoidance position, thereby restricting the drive unit (21) from running under the drive of the fan (20), and further restricting the drive unit (21) from driving the operation unit (23) to move; the operation unit (23) is driven to move the transmission unit (22), and the operation of the transmission unit (22) causes the drive unit (21) located at the avoidance position to slide along the sliding groove (13) to the transmission position to establish a transmission connection with the fan (20) and drive the drive unit (21) to run, and the operation of the drive unit (21) causes the fan (20) to rotate, and the rotation of the fan (20) generates suction to draw the air in the cavity out through the first air outlet (111).

4. A trash can according to claim 3, characterized in that, The sliding groove (13) is inclined away from the fan (20) along the direction from the transmission part (22) to the fan (20). The end of the sliding groove (13) away from the fan (20) is the avoidance position, and the end close to the fan (20) is the transmission position.

5. A trash can according to any one of claims 1 to 4, characterized in that, The drive unit (21) is a first double gear, which includes a first tooth (211) and a second tooth (212) that rotate synchronously. The first tooth (211) is meshed with the transmission unit (22). When the drive unit (21) is in the transmission position, the second tooth (212) is connected to the fan (20) in a transmission connection. When the drive unit (21) is in the avoidance position, the second tooth (212) is disengaged from the fan (20) in a transmission connection.

6. A trash can according to claim 5, characterized in that, The transmission part (22) is a gear set, which is connected to the first double gear. The number of teeth of the first gear (211) is less than the number of teeth of the second gear (212). The first double gear is slidably connected to the main body through a sliding groove (13). When the operating part (23) is driven to rotate, it drives the gear set to run. The gear set runs and drives the first tooth (211) and the second tooth (212) to rotate. It also drives the first double gear to slide along the sliding groove (13) from the avoidance position to the transmission position where the second tooth (212) is connected to the fan (20) so that the first double gear drives the fan (20) to rotate. The fan (20) continues to rotate due to inertia and applies a force to the second tooth (212) to move away from the fan (20). The second tooth (212) is driven by the force to slide the first double gear along the sliding groove (13) away from the fan (20) to the avoidance position, thereby restricting the fan (20) from driving the first double gear to rotate, and thus restricting the driving part (21) from driving the operating part (23) to move.

7. A trash can according to claim 6, characterized in that, The transmission unit (22) includes an input gear (221) coaxially arranged with the operation unit (23) and a second double gear (222) meshing with the input gear (221). The second double gear (222) has a third tooth portion (2221) and a fourth tooth portion (2222), wherein the number of teeth in the third tooth portion (2221) is less than the number of teeth in the fourth tooth portion (2222). The input gear (221) meshes with the third tooth portion (2221), and the fourth tooth portion (2222) meshes with the second tooth portion (212) of the first double gear. The fan (20) is coaxially provided with an output gear (201), and the main body is also provided with a third double gear (24) that meshes with the output gear (201). The third double gear (24) has a fifth tooth (241) and a sixth tooth (242). The number of teeth of the fifth tooth (241) is less than the number of teeth of the sixth tooth (242). The second tooth (212) of the first double gear located at the transmission position meshes with the fifth tooth (241), and the sixth tooth (242) meshes with the output gear (201). When the operating part (23) is driven to rotate in the first direction, it drives the input gear (221) to rotate in the first direction. The input gear (221) drives the second double gear (222) to rotate in the second direction opposite to the first direction by meshing with the third tooth (2221). The second double gear (222) drives the first double gear to rotate around the first direction by meshing with the first tooth (211) through the fourth tooth (2222), and drives the first double gear to move along the sliding groove (13) from the first direction. The avoidance position slides to the transmission position so that the second tooth (212) meshes with the fifth tooth (241) of the third double gear (24); the first double gear rotates around the first direction, and through the meshing of the second tooth (212) and the fifth tooth (241), it drives the third double gear (24) to rotate around the second direction. The rotation of the third double gear (24) around the second direction drives the output gear (201) to rotate around the first direction, thereby driving the fan (20) to rotate around the first direction. The fan (20) continues to rotate inertia along the first direction. The output gear (201) rotates in the same direction, driving the third double gear (24) to rotate around the second direction. The rotation of the third double gear (24) around the second direction causes the fifth tooth (241) to apply a force to the second tooth (212) to move away from the fan (20). The second tooth (212) is forced to slide the first double gear along the sliding groove (13) away from the fan (20) to the avoidance position, so as to restrict the fan (20) from driving the first double gear to rotate, thereby restricting the drive unit (21) from driving the operation unit (23) to move.

8. A trash can according to any one of claims 1-4 and 6-7, characterized in that, The operating part (23) includes a knob (231), and a connecting shaft (232) is provided on one side of the knob (231). The connecting shaft (232) is coaxially connected to the input gear (221) included in the transmission part (22) away from the knob (231). The knob (231) is driven to rotate, which drives the input gear (221) to rotate synchronously. And / or the fan (20) includes a rotating shaft (202), one end of which is provided with a plurality of fan blades (203), and the other end of which is provided with an output gear (201) that is connected to the drive unit (21) located in the transmission position.

9. A trash can according to claim 8, characterized in that, The operating part (23) rotates unidirectionally about its rotation axis; And / or the fan (20) rotates unidirectionally about its axis of rotation.

10. A trash can according to any one of claims 1-3, 6-7 and 9, characterized in that, The main body includes a barrel body (11) and a barrel lid (12). The cavity is formed inside the barrel body (11), and the barrel lid (12) is installed at the opening of the barrel body (11). The barrel (11) has a first housing (14) on the outer side wall of the first air outlet (111). An installation cavity is formed between the first housing (14) and the outer side wall. The fan (20), the drive unit (21), and the transmission unit (22) are disposed in the installation cavity. The operation unit (23) is disposed on the outer side wall of the installation cavity and passes through the outer side wall to be connected to the transmission unit (22) in a transmission manner. Alternatively, the barrel body (11) has a second housing on the outer side wall of the first air outlet (111), and an air duct (16) is formed between the second housing and the outer side wall. The barrel cover (12) is provided with an installation cavity. The air duct (16) extends to the top of the barrel body (11) and communicates with the installation cavity. The fan (20), the drive unit (21), and the transmission unit (22) are disposed in the installation cavity. The operating unit (23) is disposed on the top of the barrel cover (12) and passes through the barrel cover (12) to be connected to the transmission unit (22).

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