CN110255013B

CN110255013B - Garbage can

Info

Publication number: CN110255013B
Application number: CN201910703469.4A
Authority: CN
Inventors: 高征
Original assignee: Hangzhou Zhijie Hongyuan Technology Co ltd
Current assignee: Hangzhou Weiyuan Youju Intelligent Technology Co., Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2021-04-09
Anticipated expiration: 2039-07-31
Also published as: CN110255013A

Abstract

The invention provides a garbage can which comprises a can body with an open top, a garbage can cover base body, a garbage can cover, a first driving device, a second driving device, an automatic packing device, a garbage bag assembly and a garbage bag unfolding device. The garbage can provided by the invention integrates the functions of automatically opening and closing the cover and automatically packaging and changing bags, and has high control reliability and accuracy.

Description

Garbage can

Technical Field

The invention relates to the field of household appliances, in particular to a garbage can.

Background

In recent years, with economic development and improvement of living standard of people, the requirement of people on living quality is higher and higher. The garbage bin is also constantly upgrading as the most commonly used household tool in the life, along with scientific and technological progress and demand improvement, intelligent garbage bin is more and more popular, but most intelligent garbage bins in the market only have inductive switch lid, semi-automatic packing function and manual bag replacement function, and the function of automatic packing and bag replacement is few. And current garbage bin that has automatic packing and trade bag function, only use the decelerator that a motor drive is connected with the bung pedestal of garbage bin, just through the control motor, the output shaft of reversal drive decelerator just, the reversal, and then realize the switching of bung pedestal, in the motor operation process, the instruction confusion scheduling problem appears easily, the bung pedestal that causes the garbage bin can normally open and close, the user must still need to open and close the bung pedestal with the hand, cause the garbage bin to be free from the discrepancy with ordinary garbage bin.

Disclosure of Invention

The present invention has been made in view of the above problems. According to an aspect of an embodiment of the present invention, there is provided a trash can, including:

a barrel body with an open top;

the garbage can cover base body is arranged on the can body in a turnable way so as to open and close the top opening of the can body, and a garbage throwing inlet is formed in the garbage can cover base body;

the garbage can cover is arranged on the garbage can cover base body in a turnable way so as to open and close the garbage throwing inlet;

the first driving device is used for driving the garbage can cover to turn over;

the second driving device is used for driving the garbage can cover base body to overturn and comprises a gear transmission set, a first motor, a first gear fixedly connected with a motor shaft of the first motor, a second motor and a second gear fixedly connected with a motor shaft of the second motor, wherein the gear transmission set comprises a middle transmission gear set, a reversing gear and an output shaft, the first gear is directly meshed with an input gear of the middle transmission gear set, the second gear is meshed with an input gear of the middle transmission gear set through the reversing gear, the fixed end of the output shaft is fixedly connected with an output gear of the middle transmission gear set, and the output end of the output shaft is connected with the garbage can cover base body;

the automatic packaging device is used for closing up and sealing the garbage bag in the barrel body in a hot melting way;

the garbage bag assembly is arranged in the garbage can cover seat body and comprises a garbage bag box and a garbage bag stored in the garbage bag box, and a bag outlet is formed in the garbage bag box;

and the garbage bag unfolding device is used for unfolding the garbage bag sent out from the bag outlet into the barrel body.

Optionally, the garbage bag unfolding device comprises an air pumping device, and the air pumping device is used for pumping air to a space between the barrel body and the garbage bag in the barrel body so as to unfold the garbage bag in the barrel body; alternatively, the first and second electrodes may be,

the garbage bag unfolding device comprises an air blowing device which is used for blowing air into the garbage bag to be unfolded in the garbage can so as to unfold the garbage bag in the can body.

Optionally, the garbage bag unfolding device further comprises a pressure sensing device,

when the garbage bag unfolding device comprises an air extracting device, the pressure sensing device is used for sensing the air pressure of a space between the barrel body and the garbage bag in the barrel body so as to reflect whether the garbage bag is unfolded or not;

when the garbage bag unfolding device comprises the blowing device, the pressure sensing device is used for sensing the air pressure in the garbage bag so as to reflect whether the garbage bag is unfolded or not.

Optionally, when the garbage bag unfolding device comprises an air blowing device, an air duct structure is arranged in the garbage can, the air duct structure is arranged above the opening of the garbage bag, and the air blowing device blows air into the garbage bag through the air duct structure.

Optionally, the air duct structure is an annular structure extending along the circumferential direction of the barrel body, the annular structure comprises an outer annular portion and an inner annular portion, an air inlet hole is formed in the outer annular portion, and a plurality of air blowing holes are formed in the inner annular portion along the circumferential direction.

Optionally, the pressure detection means comprises a pressure switch,

when the garbage bag unfolding device comprises an air extractor, a communication hole is formed in the side wall of the can body, the pressure switch is located on the outer side of the can body, and a detection port of the pressure switch is connected with the communication hole through a connecting pipe;

when the garbage bag unfolding device comprises an air blowing device, a communication hole is formed in the inner ring portion, and a detection port of the pressure switch is connected with the communication hole through a connecting pipe.

Optionally, the trash can further comprises a control device, the air blowing device or the air suction device is in communication connection with the control device, the pressure sensing device is in communication connection with the control device, and the control device is used for controlling the air blowing device or the air suction device according to a sensing signal sent by the pressure sensing device.

Optionally, an opening is formed in the side portion of the barrel body, an inward concave groove structure is formed in the opening, the blowing device or the suction device is arranged in the groove structure, the control device and the pressure sensing device are also arranged in the groove structure, the electric vacuum cleaner further comprises a side cover for sealing the opening, the side cover is detachably connected with the barrel body, and the outer peripheral surface of the side cover is smoothly connected with the outer peripheral surface of the barrel body.

Optionally, the garbage can further comprises a first switch device and a second switch device which are independent of each other, the first switch device is used for triggering the garbage can to enter and exit the normally open mode of the garbage can cover, and the second switch device is used for triggering the automatic packing device to automatically pack.

Optionally, the first switch device and the second switch device are both disposed at a side portion of the trash can lid body.

Optionally, the first switch device is a tact switch; and/or the presence of a gas in the gas,

the second switch device is a tact switch.

The invention provides a garbage can which integrates the functions of automatically opening and closing a cover and automatically packaging and changing bags, can meet various requirements of users on the garbage can, and improves the control reliability and accuracy by respectively realizing the opening and closing actions of a garbage can cover base body through two motors.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

FIG. 1 is a schematic structural diagram of a trash can according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second driving device of a trash can according to an embodiment of the present invention;

FIG. 3 is an exploded view of a second drive of a trash can in accordance with an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a trash can according to an embodiment of the present invention;

FIG. 5 is a schematic view of a trash can with its side covers removed according to an embodiment of the present invention;

FIG. 6 is a schematic view of a garbage bag unfolding apparatus and a top panel of a garbage can according to an embodiment of the present invention;

FIG. 7 is a schematic view of a garbage can with a top ring plate removed by a garbage bag opening device according to an embodiment of the present invention;

FIG. 8 is a schematic view of the air duct structure of the trash can without the top ring plate according to the embodiment of the invention;

FIG. 9 is a block diagram of a control system for a trash can, according to an embodiment of the present invention;

FIG. 10 is a partial sectional view of a trash can according to another embodiment of the present invention;

FIG. 11 is a schematic view of the combination structure of the body, the pressure detecting device and the air extractor of the trash can according to another embodiment of the present invention;

FIG. 12 is a block diagram of a control system for a trash can according to another embodiment of the present invention;

fig. 13 is a block diagram of a control system for a trash can according to yet another embodiment of the present invention.

In the figure, 1, a second driving device; 11. a first motor; 12. a second motor;

2. a gear transmission set; 21. a reversing gear; 22. a middle transmission gear set; 221. an input gear; 222. an output gear; 223. a duplicate gear; 2231. a first-stage duplicate gear; 2231A, a first gearwheel; 2231B, a first pinion; 2232. a second stage duplicate gear; 2232A, a second gearwheel; 2232B, a second pinion; 2233. a third stage duplicate gear; 2233A, a third gearwheel; 2233B, a third pinion; 2234. a fourth stage duplicate gear; 2234A, a fourth gearwheel; 2234B, a fourth pinion; 23. an intermediate transmission shaft; 231. a first intermediate drive shaft; 232. a second intermediate drive shaft; 24. an output shaft; 241. a fixed end; 242. an output end;

3. a first gear;

4. a second gear;

100. a barrel body; 101. a pipe fixing structure; 102. a groove structure; 103. a card slot; 104. a support pillar; 105. an exhaust hole; 106. an air outlet; 107. a communicating hole; 200. a refuse bag; 310. a blowing device; 311. a fan; 320. an air extraction device; 321. a fan; 400. an air duct structure; 401. an outer ring portion; 4011. an air inlet; 402. an inner ring portion; 4021. a gas blowing hole; 4022. a communicating hole; 403. a bottom ring plate;

404. an intermediate ring portion; 4041. air homogenizing holes; 405. a first mounting tube joint; 406. mounting a lug;

407. a second mounting tube structure; 500. a trash can cover base body; 501. a top panel; 600. an air inlet pipe;

700. a pressure sensing device; 701. a pressure switch; 800. a connecting pipe; 900. a control device;

40. an automatic packing device; 50. a trash can cover; 60. a first driving device; 71. a first switching device; 72. a second switching device; 9. a timing device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a subset of embodiments of the invention and not all embodiments of the invention, with the understanding that the invention is not limited to the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention described herein without inventive step, shall fall within the scope of protection of the invention.

The application provides a garbage can, as shown in fig. 1, it includes open staving 100 in top, garbage bin lid pedestal 500 and second drive arrangement 1, garbage bin lid pedestal 500 can set up on staving 100 with overturning in order to open and close the open-top of staving 100, second drive arrangement 1 is used for driving the upset of garbage bin lid pedestal 500, and garbage can still has the automatic packing apparatus 40 that is used for packing the disposal bag 200 in the garbage can (including closing up and hot melt sealing the disposal bag 200 in the garbage can). When the packaging of the garbage bag 200 is completed, the second driving device 1 can drive the garbage can cover seat 500 to open, so that the user can take out the packaged garbage bag 200.

The garbage bin still includes disposal bag subassembly and disposal bag expandes the device, and the disposal bag subassembly sets up in garbage bin lid pedestal 500, includes the disposal bag box and saves in disposal bag 200 in the disposal bag box is provided with out the sack on the disposal bag box, and the disposal bag expandes the device and is used for expandeing the disposal bag 200 that is seen off by going out the sack in the staving to realize the automatic function of laying of new disposal bag 200.

The trash can cover seat body 500 is provided with a trash throwing inlet, a trash can cover 50 for opening and closing the trash throwing inlet in a turnover mode, and a first driving device 60 for driving the trash can cover 50 to turn over. The garbage can further comprises an infrared sensor, and when the sensor senses a human body, the first driving device 60 is controlled to drive the garbage can cover 50 to be opened, so that the automatic cover opening function of the garbage can is realized.

Aiming at the problem of poor reliability of the driving device of the existing trash can cover seat body 500, as shown in fig. 2 and fig. 3, in the present application, the second driving device 1 includes a gear transmission set 2, a first motor 11, a first gear 3 fixedly connected with a motor shaft of the first motor 11, and a second motor 12 and a second gear 4 fixedly connected with a motor shaft of the second motor 12, the gear transmission set 2 includes a middle transmission gear set 22, a reversing gear 21 and an output shaft 24, the first gear 3 is directly engaged with an input gear 221 of the middle transmission gear set 22, the second gear 4 is engaged with an input gear 221 of the middle transmission gear set 22 through the reversing gear 21, a fixed end 241 of the output shaft 24 is fixedly connected with an output gear 222 of the middle transmission gear set 22, an output end 242 of the output shaft 24 is connected with the trash can cover seat body, because the second gear 4 is first engaged with the reversing gear 21, the reversing gear 21 is further engaged with the input gear 221, and the first gear 3 is directly engaged with the input gear 221, so that when the first motor 11 and the second motor 12 respectively rotate in the same direction, for example, both clockwise (i.e. forward rotation) or both counterclockwise (i.e. reverse rotation), the output gear 222 driven by the first motor 11 rotates in the opposite direction to the output gear 222 driven by the second motor 12. For example, when the first motor 11 drives the first gear 3 to rotate clockwise, the first gear 3 is engaged with the input gear 221, and the input gear 221 rotates counterclockwise. When the second motor 12 drives the second gear 4 to rotate clockwise, the second gear 4 is engaged with the reversing gear 21, the reversing gear 21 rotates counterclockwise, the reversing gear 21 is engaged with the input gear 221, and the input gear 221 rotates clockwise. Since the transmission structure between the input gear 221 and the output gear 222 is not changed, but the rotation direction of the input gear 221 driven by the first motor 11 and the second motor 12 after passing through the reversing gear 21 is different, the final rotation direction of the output gear 222 is also different. Therefore, the output gear 222 is controlled by the two motors respectively to rotate clockwise and anticlockwise in different directions, the situation that steering is disordered in the process of controlling the output gear 222 to rotate in different directions by using a single motor is avoided, and the control reliability is improved. The process that the first motor 11 drives the first gear 3 to rotate counterclockwise and the second motor 12 drives the second gear 4 to rotate counterclockwise is the same as the above process, and is not described herein again. The first motor 11 and the second motor 12 cannot be driven in the same direction at the same time, and interference is avoided.

Further, as shown in fig. 2 and 3, the intermediate transmission gear set 22 includes at least two-stage dual gears 223, the gear transmission set 2 further includes at least two intermediate transmission shafts 23 disposed side by side, the dual gears 223 are sleeved outside the intermediate transmission shafts 23, the dual gears 223 can realize fixing and torque transmission in a manner of interference fit, stacked shaft key fit, for example, and the dual gears 223 sleeved on the same intermediate transmission shaft 23 rotate simultaneously with the intermediate transmission shaft 23, and the rotation directions are the same. Each duplicate gear 223 contains a large gear and a small gear with coincident axes, the large gear and the small gear are of an integral structure, the duplicate gear 223 is preferably made of alloy materials or engineering Plastics (POM), the problem that in the prior art, PA66 materials are used for preparation, gear teeth are prone to being broken in the using process is effectively solved, the using reliability is high, and the service life is prolonged.

The intermediate transmission gear set 22 includes a fourth-stage duplicate gear 223 and two intermediate transmission shafts 23, wherein the fourth-stage duplicate gear 223 includes a first-stage duplicate gear 2231, a second-stage duplicate gear 2232, a third-stage duplicate gear 2233 and a fourth-stage duplicate gear 2234, the intermediate transmission shaft 23 includes a first intermediate transmission shaft 231 and a second intermediate transmission shaft 232, the first-stage duplicate gear 2231 and the third-stage duplicate gear 2233 are sleeved on the outside of the first intermediate transmission shaft 231, and the second-stage duplicate gear 2232 and the fourth-stage duplicate gear 2234 are sleeved on the outside of the second intermediate transmission shaft 232. The first large gear 2231A of the first-stage duplicate gear 2231 is engaged with the first gear 3 and the reversing gear 21 as the input gear 221, and the reversing gear 21 is engaged with the second gear 4, so as to transmit the torque output by the first motor 11 and the second motor 12 to the intermediate transmission gear set 22. A fourth pinion 2234B of the fourth-stage double gear 2234 is engaged with the output gear 222, the output gear 222 is sleeved outside the output shaft 24 and is fixedly connected with the output shaft 24, and the output shaft 24 rotates along with the output gear 222, so as to output torque outwards through the output shaft 24.

When the first motor 11 drives the first gear 3 to rotate, the torque transmission path is as follows: the first gear 3 meshes with a first large gear 2231A of the first-stage duplicate gear 2231, a first small gear 2231B of the first-stage duplicate gear 2231 meshes with a second large gear 2232A of the second-stage duplicate gear 2232, a second small gear 2232B of the second-stage duplicate gear 2232 meshes with a third large gear 2233A of the third-stage duplicate gear 2233, a third small gear 2233B of the third-stage duplicate gear 2233 meshes with a fourth large gear 2234A of the fourth-stage duplicate gear 2234, and a fourth small gear 2234B of the fourth-stage duplicate gear 2234 meshes with the output gear 222. In the above transmission process, if the first motor 11 drives the first gear 3 to rotate forward, the first-stage duplex gear 2231, the third-stage duplex gear 2233 and the output gear 222 rotate backward, and the second-stage duplex gear 2232 and the fourth-stage duplex gear 2234 rotate forward; if the first electric motor 11 rotates the first gear 3 in the reverse direction, the first-stage dual gear 2231, the third-stage dual gear 2233, and the output gear 222 rotate in the forward direction, and the second-stage dual gear 2232 and the fourth-stage dual gear 2234 rotate in the reverse direction.

When the second motor 12 drives the second gear 4 to rotate, the torque transmission path is as follows: the second gear 4 meshes with the reversing gear 21, the reversing gear 21 meshes with a first large gear 2231A of the first-stage duplicate gear 2231, a first small gear 2231B of the first-stage duplicate gear 2231 meshes with a second large gear 2232A of the second-stage duplicate gear 2232, a second small gear 2232B of the second-stage duplicate gear 2232 meshes with a third large gear 2233A of the third-stage duplicate gear 2233, a third small gear 2233B of the third-stage duplicate gear 2233 meshes with a fourth large gear 2234A of the fourth-stage duplicate gear 2234, and a fourth small gear 2234B of the fourth-stage duplicate gear 2234 meshes with the output gear 222. In the above transmission process, if the second motor 12 drives the second gear 4 to rotate forward, the reversing gear 21, the second-stage duplex gear 2232 and the fourth-stage duplex gear 2234 rotate backward, and the first-stage duplex gear 2231, the third-stage duplex gear 2233 and the output gear 222 rotate forward; if the second electric motor 12 rotates the second gear 4 in the reverse direction, the reversing gear 21, the second-stage duplex gear 2232, and the fourth-stage duplex gear 2234 rotate in the normal direction, and the first-stage duplex gear 2231, the third-stage duplex gear 2233, and the output gear 222 rotate in the reverse direction.

As shown in fig. 4 and 5, the garbage bag unfolding apparatus includes an air blowing device 310 for blowing air into the garbage bag 200 to be unfolded in the garbage can so that the garbage bag 200 is unfolded in the can body 100, and the garbage can further includes an exhaust passage for exhausting air between the garbage bag 200 and the can body 100, so that the garbage bag 200 is unfolded and the air between the garbage bag 200 and the can body 100 is gradually squeezed by blowing air into the garbage bag 200 through the air blowing device 310, so that the air is exhausted from the garbage can through the exhaust passage, and the garbage bag 200 is attached to the inner wall surface of the can body 100, and the laying of the garbage bag 200 is completed, which greatly improves the laying efficiency of the garbage bag 200 and the unfolding effect of the garbage bag 200 is good.

The air blowing device 310 can blow air into the trash bag 200 directly, and in order to optimize the structure, preferably, an air duct structure 400 is further disposed in the trash can, the air duct structure 400 is disposed above the opening of the trash bag 200, and the air blowing device 310, such as a fan 311, can blow air into the trash bag 200 through the air duct structure 400, so that the air blowing device 310 can be disposed at any position, and the reasonable layout of all structural devices of the trash can is facilitated.

Optionally, the trash can further includes a trash can cover (not shown in the figures) and a trash can cover seat 500 for installing the trash can cover, the trash can cover seat 500 is installed at the opening of the can body 100, the air duct structure 400 is disposed in the trash can cover seat 500, a trash bag assembly is further accommodated in the trash can cover seat 500, and when the trash bag 200 is laid, the air flow blown into the air duct structure 400 by the air blowing device 310 is blown out to the inlet of the trash bag 200 in the trash bag assembly through the air blowing hole 4021, so that the trash bag 200 is unfolded into the can body 100.

The trash can cover base 500 includes a top panel 501, as shown in fig. 6, the air duct structure 400 is preferably fixedly connected to the top panel 501, for example, fixedly connected by a fastener or detachably connected by clamping, interference fit, or the like. In the embodiment shown in fig. 7 and 8, the air duct structure 400 is provided with a plurality of mounting lugs 406 on the outer periphery thereof, and the air duct structure 400 is fixedly connected with the top panel 501 through the mounting lugs 406.

In order to ensure the uniformity of air blowing in all directions of the trash bag 200, preferably, the air channel structure 400 is an annular structure extending along the circumferential direction of the can body 100, the annular structure includes an outer ring portion 401, an inner ring portion 402, and a bottom ring plate 403, the mounting lugs 406 are disposed on the outer ring portion 401, in one embodiment, a flow space for air flow is formed between the outer ring portion 401, the inner ring portion 402, the bottom ring plate 403, and the top plate 501, in another embodiment, a top ring plate (not shown) is further included, a flow space for air flow is formed between the outer ring portion 401, the inner ring portion 402, the top ring plate, and the bottom ring plate 403, the outer ring portion 401 and the inner ring portion 402 are preferably both cylindrical structures, the outer ring portion 401 is provided with an air inlet hole 4011, the inner ring portion 402 is provided with a plurality of air blowing holes 4021 arranged along the circumferential direction thereof, the plurality of air blowing holes 4021 are preferably uniformly distributed along the circumferential direction, so that, and then uniformly blown into the trash bag 200 through the plurality of blowing holes 4021 to spread the trash bag 200.

For convenience of processing, as shown in fig. 7 and 8, preferably, the blowing holes 4021 are provided at the upper portion of the inner ring portion 402 and penetrate through the top of the inner ring portion 402 to form an open slot with an open top, and the top plate 501 or the top ring plate closes the slot of the open slot.

Because inlet port 4011 has only one, and blow hole 4021 is provided with a plurality of and distributes in the different positions of wind channel structure 400, and a plurality of blow holes 4021 can lead to the difference of air output because of the difference of the degree of distance to inlet port 4011, to this problem, in a preferred embodiment, be provided with even flow structure in the wind channel structure 400, make the inside air current of entering wind channel structure 400 evenly disperse to each blow hole 4021 through even flow structure to improve the different problem of air output of foretell different blow holes 4021.

The flow equalizing structure may be, for example, a baffle structure, and the baffle is used to disperse and guide the air flow entering the air duct structure 400 from the air inlet 4011 to each of the air blowing holes 4021. For simplifying the structure, preferably, even flow structure is including setting up middle ring portion 404 between outer ring portion 401 and interior ring portion 402, middle ring portion 404 is preferred to be the tubular structure, middle ring portion 404 divides the annular space between outer ring portion 401 and interior ring portion 402 into outer ring space and inner ring space, be provided with a plurality of even gas holes 4041 along circumference on the middle ring portion 404, the gas in the outer ring space gets into the inner ring space through even gas hole 4041 homogenization, enter into each gas hole 4021 respectively through the inner ring space again, the middle transitional action through even gas hole 4041 makes the air current that gets into each gas hole 421 more even.

For convenience of processing, preferably, as shown in fig. 7 and 8, the gas uniformizing holes 4041 are provided at an upper portion of the middle ring portion 404 and form an open slot with an open top through a top portion of the middle ring portion 404, and the top panel 501 or the top ring panel closes a notch of the open slot.

The number of the intermediate ring portions 404 may be one or plural, and the plural intermediate ring portions 404 further improve the homogenization effect but increase the resistance to the flow of the gas flow, and therefore, it is preferable that the number of the intermediate ring portions 404 is one.

Optionally, the number of the air homogenizing holes 4041 is less than the number of the blowing holes 4021, and the air flow area of the air homogenizing holes 4041 is greater than the air flow area of the blowing holes 4021, for example, one air homogenizing hole 4041 corresponds to one group of the plurality of blowing holes 4021, and the air flow area of the air homogenizing hole 4041 is equal to the sum of the air flow areas of the corresponding group of the plurality of blowing holes 4021, so as to further improve the air flow homogenizing effect.

Optionally, the air homogenizing holes 4041 are arranged in a staggered manner with the air blowing holes 4021 in the circumferential direction, so that the air flow homogenizing effect is further improved.

In a specific embodiment, two air uniform holes 4041 are oppositely arranged and located on two opposite sides of the inner ring portion 402, and 6 air blow holes 4021 are arranged, two of them are respectively arranged on the other two sides of the inner ring portion 402, and the other four air uniform holes 4041 are arranged two by two on two opposite sides of the inner ring portion 402.

The blowing device 310 can blow air directly into the air inlet 4011, and in order to facilitate the arrangement of the blowing device 310, preferably, an air outlet of the blowing device 310 is connected to the air inlet 4011 through an air inlet pipe 600, for example, a first mounting pipe joint 405 protrudes from an edge of the air inlet 4011 to a radial outer side of the air duct structure 400, and the air inlet pipe 600 is connected to the first mounting pipe joint 405 in a plugging manner.

Preferably, at least a portion of the wall of the air inlet duct 600 is attached to the outer wall surface of the tub 100, so as to improve the structural reliability of the air inlet duct 600. For example, the air inlet duct 600 is bent inward from a predetermined position to be attached to the outer wall surface of the tub 100, and then bent outward from another predetermined position to be connected to the air duct structure 400, and the bent structure can further improve the structural reliability of the air inlet duct 600.

Preferably, a pipe fixing structure 101 is disposed on an outer wall surface of the barrel 100 for fixing the air inlet pipe 600 to the barrel 100, the pipe fixing structure 101 may be, for example, a plurality of snap structures for snapping the air inlet pipe 600, and further preferably, the pipe fixing structure 101 is for fixedly connecting with a portion of the air inlet pipe 600, which is attached to the outer wall surface of the barrel 100.

The existing garbage can with the automatic bag changing function detects the garbage bags 200 in the mode that the Bluetooth signal detection is adopted, the transmitting end transmits signals, the signals are reflected by the garbage bags 200 to form transmitting signals, the receiving end receives the signals, whether the garbage bags 200 are laid or not is judged according to the received position information, the laying of the garbage bags 200 is controlled, and the rotation of the fan 311 is stopped when the laying is finished. This approach has the following problems:

1. the trash bag 200 is very thin, and in the detection process, the signal transmitted by the transmitter is difficult to detect the trash bag, so that the signal cannot be normally transmitted to the receiver, and further, whether the trash bag 200 is laid or not cannot be detected;

2. the cost of parts using a signal transmitter and a signal receiver is high;

3. the installation degree of difficulty is high.

In view of the above problems, in the trash can provided by the present application, the trash bag unfolding apparatus further includes a pressure sensing apparatus 700 for sensing the air pressure in the trash bag 200, and the air pressure in the trash bag 200 may change continuously along with the continuous blowing of the blowing apparatus 310 into the trash bag 200, so that the air pressure sensed by the pressure sensing apparatus 700 may reflect whether the trash bag 200 is unfolded or not, for example, when the air pressure changes to a preset value, it indicates that the trash bag 200 has been laid, and at this time, the blowing apparatus 310 may be controlled to stop blowing. The detection mode is more sensitive and effective, has low error rate, and reduces the cost and the installation difficulty.

The pressure sensing device 700 can be a pressure sensor, and in order to save cost, in the embodiment shown in fig. 2, the pressure sensing device 700 is a pressure switch 701, and when the air pressure inside the garbage bag 200 changes to a preset value, the pressure switch 701 is activated to indicate that the garbage bag 200 is completely unfolded.

To facilitate the pressure sensing of the pressure switch 701, it is preferable that a communication hole 4022 is provided on the inner ring part 402, and the detection port of the pressure switch 701 communicates with the inner space of the trash bag 200 through the communication hole 4022. Further preferably, the pressure switch further includes a connection pipe 800, one end of the connection pipe 800 is connected to the detection port of the pressure switch 701, and the other end is connected to the communication hole 4022, for example, the other end is connected to the communication hole 4022 of the inner ring 402 through the outer ring portion 401 and the intermediate ring portion 404 in sequence. In an alternative embodiment, as shown in fig. 7, the air duct structure 400 further includes a second mounting pipe joint 407, one end of the second mounting pipe joint 407 is connected to the communicating hole 4022, and the other end of the second mounting pipe joint 407 sequentially passes through the middle ring portion 404 and the outer ring portion 401 and is exposed outside the air duct structure 400, so as to be connected to the connecting pipe 800 in an inserting manner. Pressure switch 701 passes through the space intercommunication in connecting pipe 800 and the disposal bag 200 to the atmospheric pressure in the response disposal bag 200, so, can enough guarantee the accuracy that detects, can make pressure switch 701 set up the position more nimble again, more be favorable to the spatial arrangement of each partial structure of garbage bin.

It is further preferable that the connection pipe 800 is a flexible pipe, such as a rubber pipe, so as to further improve flexibility of the position where the pressure switch 701 is disposed.

Further preferably, an opening is formed in the side of the barrel 100, the opening preferably runs through from top to bottom, an inward-recessed groove structure 102 is formed in the opening, the air blowing device 310, the pressure sensing device 700 and the connecting pipe 800 are all arranged in the groove structure 102, and a part of the structure of the connecting pipe 800 is attached to the inner bottom wall of the groove structure 102, so that the structures of the air blowing device 310, the pressure sensing device 700 and the connecting pipe 800 are prevented from protruding out of the barrel 100.

A side cover (not shown) is disposed at the opening for closing the opening, so as to protect the blowing device 310 and the pressure sensing device 700. The outer peripheral face of side cap and the outer peripheral face smooth connection of staving 100, so, can guarantee the integrality of garbage bin outward appearance, avoid the entering of dust.

The side cover is detachably connected with the tub 100, thereby facilitating the repair and maintenance of the blowing device 310 and the pressure sensing device 700. The side cover and the bucket body 100 may be connected by fasteners, snap-fit, etc., for example. For convenience of operation, preferably, two sides of the side cover are provided with clamping legs, as shown in fig. 5, two corresponding sides of the opening are provided with clamping grooves 103, and the clamping legs are clamped into the clamping grooves 103 to realize the clamping connection of the side cover and the barrel 100.

Because the side cover is of a thin-wall structure, it is very easy to be damaged by fracture and the like when being collided by external force, and based on this, in the embodiment shown in fig. 5, preferably, a supporting column 104 is arranged on the inner bottom wall of the groove structure 102, one end of the supporting column 104 is connected with the inner bottom wall, for example, the supporting column is integrated with the inner bottom wall of the groove structure 102 or forms a detachable or non-detachable fixed connection, and the other end abuts against the inner wall surface of the side cover, so as to reinforce the structural strength of the side cover. The number and arrangement positions of the supporting columns 14 are not limited, for example, in the embodiment shown in fig. 5, five supporting columns 104 are arranged, four of which are respectively located at four corners of the rectangle, and the other is located at the top.

When the air pressure changes to a preset value, indicating that the garbage bag is completely laid, the user may manually turn off the blowing device 310, such as the blower 311, in order to implement automatic control, in one embodiment, the pressure switch 701 is disposed on the power supply circuit of the blower 311, and when the air pressure changes to a preset value, the pressure switch 701 is operated to cut off the power supply circuit of the blower 311, so that the blower 311 stops working. In another embodiment, as shown in fig. 9, the trash can further includes a control device 900, the pressure sensing device 700, such as the pressure switch 701, and the air blowing device 310, such as the blower 311, are both in communication connection with the control device 900, the control device 900 controls the air blowing device 310 according to a sensing signal sent by the pressure sensing device 700, specifically, in an embodiment where the pressure sensing device 700 is the pressure switch 701, when the air pressure changes to a preset value, the pressure switch 701 is activated to send the sensing signal to the control device 900, and the control device 900 sends a control instruction to the air blowing device 310 after receiving the sensing signal, so that the air blowing device 300 stops operating. In the embodiment that the pressure sensing device 700 is a pressure sensor, the pressure sensor detects an air pressure value in real time and transmits the air pressure value to the control device 900, the control device 900 determines whether the currently detected air pressure value reaches a preset value, if not, the control device 900 controls the air blowing device 310 to perform air blowing operation, and if so, the control device 900 sends a control command to the air blowing device 310 to stop the operation of the air blowing device 310.

The exhaust channel can be disposed on the trash can lid seat 500, and the air between the trash bag 200 and the can body 100 can be exhausted from the trash can lid seat 500, for the sake of simplifying the structure, it is preferable that the can body 100 is provided with the exhaust hole 105, and the exhaust hole 105 is used for exhausting air, in the embodiment shown in fig. 5, the exhaust hole 105 is disposed on the inner bottom wall of the groove structure 102, so that the air flow can enter the groove structure 102 and be exhausted from the gap between the side cover and the can body 100.

Of course, it is understood that, as shown in fig. 10 to 12, the air blowing device 310 may be replaced with an air suction device 320, such that the air duct structure 400 may be omitted, and specifically, when the garbage bag 200 needs to be laid, the air suction device 320 is controlled to suck air into the space between the tub 100 and the garbage bag 200 inside the tub 100, so that the garbage bag 200 is unfolded inside the tub 100, thereby completing the laying of the garbage bag 200. The air extractor 320 can be any device that facilitates air extraction, such as an air extractor pump, and for ease of installation and cost savings, in the embodiment shown in fig. 10 and 11, the air extractor 320 is a fan 321 disposed near the bottom of the bucket 100.

Optionally, a fan 321 is disposed within the tub 100. In order to ensure the storage space of the garbage in the barrel 100 and avoid the garbage from damaging the fan 321, preferably, the fan 321 is disposed outside the barrel 100, and further preferably, is fixedly connected to the barrel 100, the barrel 100 is provided with an air outlet 106, and an air inlet of the fan 321 is disposed corresponding to the air outlet 106. In order to ensure the air exhaust efficiency, it is preferable that the air outlet hole 106 is provided in plurality.

Similar to the blowing type garbage bag unfolding device, the garbage bag unfolding device further comprises a pressure sensing device 700 for sensing the air pressure in the space between the can body 100 and the garbage bag 200 in the can body 100, and the air pressure in the space continuously changes along with the air in the space between the can body 100 and the garbage bag 200 being pumped away, so that the air pressure sensed by the pressure sensing device 700 can reflect whether the garbage bag 200 is completely unfolded, for example, when the air pressure changes to a preset value, the garbage bag 200 is completely laid, and at this time, the air pumping device 320 can be controlled to stop pumping air. The detection mode is more sensitive and effective, has low error rate, and reduces the cost and the installation difficulty.

The pressure sensing device 700 may be a pressure sensor, and in order to save cost, in the embodiment shown in fig. 10 and 11, the pressure sensing device 700 is a pressure switch 701, and when the air pressure in the space between the tub 100 and the garbage bag 200 changes to a preset value, the pressure switch 701 is activated to indicate that the garbage bag 200 is completely unfolded.

Optionally, a pressure switch 701 is provided within the barrel 100. In order to secure a storage space for garbage in the tub 100 and to prevent the garbage from damaging the pressure switch 701, it is preferable that the pressure switch 701 is disposed outside the tub 100, and it is further preferable that the pressure switch 701 is mounted on the tub 100, and a communication hole 107 is provided on a side wall of the tub 100, and a detection port of the pressure switch 701 communicates with the above space through the communication hole 107.

Further preferably, still include connecting pipe 800, the one end and the intercommunicating pore 107 of connecting pipe 800 are connected, and the other end is connected with pressure switch 701's detection mouth, and pressure switch 701 passes through the space intercommunication between connecting pipe 800 and staving 100 and disposal bag 200 to the atmospheric pressure in this space of response, so, can enough guarantee the accuracy that detects, can make pressure switch 701's the position that sets up more nimble again, more be favorable to the spatial arrangement of each partial structure of garbage bin.

In order to secure the accuracy of the detection, it is preferable that the communication hole 107 is provided at the middle of the tub 100.

The pressure switch 701 is disposed higher than the communication hole 107, so that the structural arrangement of each part is more reasonable.

As shown in fig. 12, the control device 900 is connected to a pressure sensing device 700 such as a pressure switch 701 and a suction device 320 such as a blower 321 in communication, and the control process of the suction type disposal bag deployment device is similar to the control process of the blowing type disposal bag deployment device, and will not be described again.

The trash can has a trash can lid normally open mode in which the trash can lid 50 is in a normally open state. As shown in fig. 1 and 13, the trash can further includes a first switch device 71 and a second switch device 72, which are independent of each other, the first switch device 71 is used for triggering the trash can to enter and exit the trash can lid normally open mode, and the second switch device 72 is used for triggering the automatic packing device 40 to automatically pack. Through setting up two mutually independent switching device, be used for controlling the switching of rubbish bung 50 and automatic packing apparatus 40 respectively, can effectively avoid the insensitive problem of touch that current a touch button control produced easily like this, also can avoid single switch to bear the instruction confusion problem that produces easily when multinomial function order simultaneously to in the use, reduced the use threshold, promoted use experience, promoted product life.

Further, the trash can further comprises a control device 900, the first switch device 71 and the first driving device 60 are in communication connection with the control device 900, and the control device 900 is configured to control the first driving device 60 to enable the trash can cover 50 to be kept in an open state when the trash can is not in the trash can cover normally open mode and receives a trigger signal sent by the first switch device 71, so that the trash can enters the trash can cover normally open mode, that is, when a user needs to enable the trash can cover 50 to be always kept in the open state, the trash can cover 50 is opened when the user presses the first switch device 71, and if the control device 900 does not receive an external control signal to the first driving device 60 any more, the trash can cover 50 is always kept in the open state. The control device 900 is further configured to control the trash can to exit the trash can cover normally open mode when the trash can is in the trash can cover normally open mode and receives a trigger signal sent by the first switch device 71, that is, when the trash can is in the trash can cover normally open mode, a user presses the first switch device 71, and then the trash can exits the trash can cover normally open mode.

Further, the trash can further comprises a timing device 9 for timing, the timing device is used for starting timing when the trash can exits from the trash can cover normally open mode, the control device 900 is used for controlling the first driving device 60 to drive the trash can cover 50 to close when the timing duration of the timing device 9 reaches or exceeds a first preset duration and a control signal for the first driving device 60 is not received during timing, namely, when a user wants the trash can to exit from the trash can cover normally open mode, namely, when the user wants to close the trash can cover 50, the user presses the first switch device 71, and then the trash can cover 5 is closed after a period of time, so that the problem of hand clamping caused by the fact that the trash can cover 5 is immediately closed is avoided.

The first predetermined time period may be built in the timing device 9 or the control device 900, or may be set by a user according to a requirement, and optionally, the first predetermined time period is 3-5 s.

Further, the second switch device 72 and the automatic packing device 40 are both connected in communication with the control device 900, and the control device 900 is configured to control the automatic packing device 40 to perform automatic packing when receiving the trigger signal sent by the second switch device 72. That is, when the garbage bag is full and the user needs to take out the garbage bag, the user presses the second switch device 72, thereby triggering the automatic packing function of the garbage can.

Further, the control device 900 is also in communication connection with the second driving device 1, and the control device 900 is configured to control the second driving device 1 to drive the trash can cover seat 500 to open when the automatic packing device 40 completes packing, so that a user can take out a packed trash bag.

The control device 900 may determine whether the automatic packing device 40 completes the packing action by detecting the action state of the automatic packing device 40, and in order to save cost, it is preferable that the automatic packing device 40 completes the packing action by an action time length, specifically, the timing device 9 is further configured to start timing when the second switch device 72 sends the trigger signal, and the control device 900 is configured to determine that the automatic packing device 40 completes the packing when the timing time length of the timing device 9 reaches or exceeds the second predetermined time length.

The second predetermined time period may be built in the timing device 9 or the control device 900, or may be set by the user according to the requirement, and optionally, the second predetermined time period is 8-12 s.

The control device 900 is further configured to control the second driving device 1 to drive the trash can lid body 500 to close after the packaged trash bag is taken out, and the control device 900 may determine whether the trash bag is taken out by detecting whether the trash bag in the can body 100 exists.

In order to save costs, the second drive 1 can preferably be controlled in a clocked manner. Specifically, the timing device 9 is further configured to continue timing or re-timing when the automatic packing device 40 finishes packing, and the control device 900 is configured to consider that the user has taken out the packed trash bag when the timing duration of the timing device 9 continuing timing reaches or exceeds the third predetermined duration or the re-timed timing duration reaches or exceeds the fourth predetermined duration, and at this time, control the second driving device 1 to drive the trash can cover seat 500 to close. Namely, two timing manners may be adopted, wherein one manner is that the timing device 9 is not cleared after the timing reaches the second predetermined time period, but continues to time, and the other manner is that the timing device 9 is cleared after the timing reaches the second predetermined time period, and then the timing is restarted, and both manners can realize the control of the action of the second driving device 1 by the timing manner.

The third predetermined time period and the fourth predetermined time period may be built in the timing device 9 or the control device 900, or may be set by a user according to a requirement, and optionally, the third predetermined time period is 15-18s, and the fourth predetermined time period is 3-5 s.

The timer 9 may be provided separately and controlled by a separate control module to start and stop timing, or may be provided internally in the control device 900 and controlled by the control device 900 to start and stop timing.

The first switch device 71 and the second switch device 72 can be disposed at any position of the trash can, and for convenience of operation and convenience of wiring, preferably, as shown in fig. 1, the first switch device 71 and the second switch device 72 are disposed at a side portion of the trash can cover body 500, and further preferably, are arranged in an up-and-down manner.

The first switch device 71 and the second switch device 72 are preferably touch switches, and the touch switches are mechanical switches, and are composed of an insulating layer, a dome sheet and the like, and are used for sensing touch of a human body and sending out sensing signals. The tact switch has small contact resistance and accurate operation force error, and can obtain excellent operation experience.

Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the foregoing illustrative embodiments are merely exemplary and are not intended to limit the scope of the invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as set forth in the appended claims.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The above description is only for the specific embodiment of the present invention or the description thereof, and the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A trash can, comprising:

a barrel body with an open top;

the garbage bag unfolding device is used for unfolding the garbage bag sent out from the bag outlet into the barrel body; the garbage bag unfolding device comprises an air blowing device which is used for blowing air into a garbage bag to be unfolded in the garbage can so as to unfold the garbage bag in the can body; the garbage bag unfolding device further comprises a pressure sensing device, and the pressure sensing device is used for sensing the air pressure in the garbage bag so as to reflect whether the garbage bag is unfolded or not.

2. The trash can of claim 1, wherein an air duct structure is arranged in the trash can and arranged above the opening of the trash bag, and the air blowing device blows air into the trash bag through the air duct structure.

3. The trash can of claim 2, wherein the air duct structure is an annular structure extending along the circumferential direction of the can body, the annular structure comprises an outer annular portion and an inner annular portion, the outer annular portion is provided with an air inlet hole, and the inner annular portion is provided with a plurality of air blowing holes along the circumferential direction.

4. A trash can according to claim 3, wherein the pressure detecting device comprises a pressure switch, a communication hole is arranged on the inner ring part, and a detecting port of the pressure switch is connected with the communication hole through a connecting pipe.

5. The trash can of claim 1, further comprising a control device, wherein the air blowing device is in communication with the control device, the pressure sensing device is in communication with the control device, and the control device is configured to control the air blowing device according to a sensing signal sent by the pressure sensing device.

6. The trash can of claim 5, wherein the side of the can body is provided with an opening, a groove structure recessed inwards is arranged at the opening, the air blowing device is arranged in the groove structure, the control device and the pressure sensing device are also arranged in the groove structure, and the trash can further comprises a side cover used for closing the opening, the side cover is detachably connected with the can body, and the outer peripheral surface of the side cover is smoothly connected with the outer peripheral surface of the can body.

7. A trash can according to any one of claims 1 to 6, further comprising a first switch device and a second switch device which are independent of each other, wherein the first switch device is used for triggering the trash can to enter and exit the normally open mode of the trash can cover, and the second switch device is used for triggering the automatic packing device to automatically pack.

8. A waste bin according to claim 7 wherein the first and second switch means are both provided on a side of the bin cover receptacle.

9. A trashcan as claimed in claim 7, wherein the first switch arrangement is a tact switch; and/or the second switch device is a tact switch.