CN110510296B - Intelligent garbage can capable of automatically closing up according to garbage amount - Google Patents

Abstract

The application discloses an intelligent garbage can capable of automatically closing up according to garbage amount, wherein a plurality of rolling units are arranged in a garbage bag box, and the rolling units can work together with a baffle plate in an ascending state, so that a garbage bag body in a garbage bag placing cavity is always in a tensioning state, and the garbage bag body is conveniently sealed. The application can sense the top position of the garbage in the process of closing up the garbage bag body, and can adjust the position of the garbage in the can body according to the sensed information, so that the closing up unit can seal and fuse the bag opening of the garbage bag body at a proper position. Because the rolling unit can cooperate the baffle of liftable to carry out the operation of rolling up to the disposal bag body for the disposal bag body that is in the disposal bag and puts into the chamber is taut state all the time, has made things convenient for the sack department of encapsulation disposal bag body, and has solved the problem that the department of sealing that takes place because the disposal bag body is lax is not pleasing to the eye, insecure.

Description

A smart trash can that automatically closes according to the amount of garbage

Technical field

The present invention relates to the technical field of smart trash cans, and in particular, to a smart trash can that automatically closes its mouth according to the amount of garbage.

Background technique

Existing smart trash cans usually use continuous garbage bags without breaks to contain garbage. When the garbage bags are filled with garbage, the garbage bags are sealed and fused through a closing device and a hot melt device fixed in the trash can. In the existing technology, the length of the garbage bag extended each time the bag is changed is unique. When the user needs to clean the garbage bag before filling it, the closing device and the hot melt device operate on the garbage bag at a fixed length. As a result, part of the garbage bag that does not contain garbage is wasted to a certain extent; when the user loads too much garbage bag, it is difficult for the closing device and the hot melt device to operate the garbage bag at a fixed length, resulting in difficulties. Sealing and fusing phenomena. Therefore, how to design a trash can that can intelligently seal the mouth of the garbage bag according to the amount of garbage put in is a technical problem we need to solve.

Contents of the invention

In view of the deficiencies in the above technology, the present invention provides a smart trash can that automatically closes according to the amount of garbage.

The technical solutions adopted by the present invention to solve the technical problems are:

A smart trash can that automatically closes according to the amount of garbage, including: a barrel body with a garbage bag insertion cavity inside, and a partition board installed in the garbage bag insertion cavity that can be raised and lowered; a bottom cover that is flippably installed on The top rear end of the barrel is used to facilitate the user to take out the sealed garbage bag containing garbage. The center of the bottom cover is provided with an entrance for putting garbage in, and a garbage bag box is detachably installed around the entrance; , there are several rewinding units installed in the garbage bag box, which can cooperate with the partition plate in the rising state, so that the garbage bag body in the garbage bag insertion cavity is always in a tightened state, so as to facilitate the garbage bag body Carry out sealing work.

Preferably, the garbage bag box includes a lower box body and an upper box body detachably installed on the lower box body; the lower box body is provided with an installation cavity for placing continuous and uninterrupted garbage bag rolls; and a plurality of rewinding units. Fixed in the installation cavity along the circumference.

Preferably, the winding unit includes a driven winding roller, which is rotatably fixed on one inner wall of the installation cavity; an active winding roller, which is opposite to the driven winding roller, and the active winding roller is rotatably and movably installed. On the inner wall of the other side of the installation cavity; and a winding drive device, which is used to provide rotational power to the active winding roller when the active winding roller and the driven winding roller are in pressure contact.

Preferably, the active roller is installed on the inner wall of the other side of the installation cavity through the active roller frame; the active roller is fixed with a roller shaft, and the active roller frame is provided with a slide to limit the movement of the roller shaft. ; The winding unit also includes a push-pull drive device, which is fixed on the inner wall of the other side of the installation cavity; the push-pull drive device has a telescopic arm, and the roller shaft is rotatably connected to the telescopic arm.

Preferably, the partition is elevatingly installed in the garbage bag insertion cavity through a lifting unit. The lifting unit includes a lifting driving device, which is fixedly arranged at the bottom of the partition. The lifting driving device is connected with a first output shaft and a second output shaft. Output shaft; two first lifting gears, which are rotatably installed on one side of the bottom of the partition; two second lifting gears, which are rotatably installed on the other side of the bottom of the partition; a first driven cone gear, which is arranged to rotate synchronously with the two first lifting gears; and a second driven bevel gear, which is arranged to rotate synchronously with the two second lifting gears; wherein, the first output shaft is fixed with a gear capable of rotating with the first driven gear. The first driving bevel gear of the bevel gear meshing transmission; the second output shaft is fixed with a second driving bevel gear that can mesh and transmit with the second driven bevel gear; the lifting unit also includes a vertical bevel fixed in the garbage bag placement cavity. Four racks; two first lifting gears and two second lifting gears can be connected to the four racks correspondingly for linked partition lifting operations.

Preferably, a smart trash can that automatically closes according to the amount of garbage also includes a closing unit provided at the bottom of the bottom cover, which is used to seal the garbage bag body containing garbage.

Preferably, the closing unit includes a first closing rod and a second closing rod that are arranged in parallel and can be synchronously approached or synchronously moved away, and also includes a third closing rod; the third closing rod is vertical to the first closing rod and the second closing rod. It is set up, and the three of them can collect the mouth of the garbage bag body under the action of the closing drive device.

Preferably, the closing unit also includes a heating wire module, which is fixed at the bottom of the bottom cover, and is used for cleaning the mouth of the garbage bag body after the closing operation of the first closing rod, the second closing rod and the third closing rod is completed. Fuse processing.

Preferably, a smart trash can that automatically closes according to the amount of garbage also includes a touch switch, which is provided at the bottom of the closing unit for sensing the top position of the garbage contained in the garbage bag body.

Preferably, a ventilation cavity is formed in the barrel body and communicates with the garbage bag insertion cavity; and a fan for sucking the garbage bag body into the garbage bag insertion cavity is installed in the ventilation cavity.

Compared with the existing technology, the beneficial effects of the present invention are: the intelligent trash can that automatically closes according to the amount of garbage provided by the present invention can sense the top position of the garbage during the process of closing the garbage bag body, and can adjust the top position of the garbage according to the required amount. The sensed information adjusts the position of the garbage in the bucket body so that the closing unit can seal and fuse the mouth of the garbage bag body at the appropriate position. Since the rewinding unit can cooperate with the lifting partition to rewind the garbage bag body, the garbage bag body in the garbage bag insertion cavity is always in a tightened state, which facilitates the sealing of the garbage bag body. It also solves the problem of unsightly and weak seals caused by the loose body of garbage bags.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the present invention with the top cover open;

Figure 2 is a schematic diagram of the overall structure of the present invention with the bottom cover opened;

Figure 3 is a schematic diagram of the exploded structure of the garbage bag box in the present invention;

Figure 4 is a schematic diagram of the installation structure of the winding unit in the present invention;

Figure 5 is a schematic diagram of the overall structure of the winding unit in the present invention;

Figure 6 is a front structural view of the winding unit in different working states of the present invention;

Figure 7 is a schematic diagram of the installation structure of the partition in the present invention;

Figures 8-9 are schematic diagrams of the installation structure of the lifting unit in the present invention;

Figure 10 is a schematic diagram of the installation structure of the closing unit in the present invention;

Figure 11 is a schematic diagram of the overall structure of the closing unit in the present invention;

Figure 12 is an isometric view of the working state of the closing unit before the touch switch senses the top position of the garbage;

Figure 13 is a front view of the closing unit in its working state before the touch switch senses the top position of the garbage;

Figure 14 is a schematic diagram of the installation structure of the wind turbine according to the present invention.

In the picture: 10. Bucket body; 100. Garbage bag insertion cavity; 60. Partition; 11. Bottom cover; 3. Garbage bag box; 4. Rewinding unit; 51. Garbage bag body; 12. Top cover; 31. Lower box body; 32. Upper box body; 5. Garbage bag roll; 30. Installation cavity; 41. Driven roller; 42. Active roller; 45. Rewinding drive device; 421. Active roller frame; 43. Roller shaft; 420. Slideway; 44. Push-pull drive device; 441. Telescopic arm; 46. Winding belt; 311. First wall panel; 312. Second wall panel; 411. Driven roller frame; 6. Lifting unit; 63. Lifting drive device; 61. First lifting gear; 62. Second lifting gear; 641. First driven bevel gear; 642. Second driven bevel gear; 631. First driving bevel gear ; 632. Second driving bevel gear; 105. Rack; 2. Closing unit; 21. First closing rod; 22. Second closing rod; 23. Third closing rod; 241. First closing drive motor; 251. The first closing belt; 252. The second closing belt; 242. The second closing driving motor; 253. The third closing belt; 9. Heating wire module; 7. Touch switch; 101. Ventilation cavity; 8. Fan; 103. First vent; 104, second vent; 600, suction hole.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the text of the description.

As shown in Figures 1 to 14, the present invention provides a smart trash can that automatically closes according to the amount of garbage, including:

The barrel body 10 has a garbage bag insertion cavity 100 inside, and a partition 60 is installed in the garbage bag insertion cavity 100 so as to be lifted and lowered;

The bottom cover 11 is reversibly provided at the top rear end of the barrel body 10 to facilitate the user to take out the sealed garbage bag containing garbage. The center of the bottom cover 11 is provided with an entrance for putting garbage in. The entrance is A garbage bag box 3 is detachably installed on the periphery;

Among them, a plurality of winding units 4 are installed in the garbage bag box 3, which can cooperate with the partition plate 60 in the rising state, so that the garbage bag body 51 in the garbage bag insertion cavity 100 is always in a tightened state, so that The garbage bag body 51 is sealed.

As an embodiment of the present invention, a top cover 12 for sealing the entrance is reversibly installed on the top rear end of the bottom cover 11 .

As an embodiment of the present invention, the garbage bag box 3 includes a lower box body 31 and an upper box body 32 detachably installed on the lower box body 31; the lower box body 31 is provided with a space for placing continuous and uninterrupted garbage bags. Installation cavity 30 of volume 5;

Several winding units 4 are fixed in the installation cavity 30 along the circumferential direction.

As an embodiment of the present invention, the winding unit 4 includes

The driven roller 41 is rotatably fixed on one inner wall of the installation cavity 30;

The active winding roller 42 is arranged opposite to the driven winding roller 41. The active winding roller 42 is rotatably and movably installed on the other inner wall of the installation cavity 30; and

The winding driving device 45 is used to provide rotational power to the driving winding roller 42 when the driving winding roller 42 and the driven winding roller 41 are in pressure contact.

As an embodiment of the present invention, the active roller 42 is installed on the other inner wall of the installation cavity 30 through the active roller frame 421;

A roller shaft 43 is fixed on the active roller 42 , and a slide 420 is provided on the active roller frame 421 to limit the movement of the roller shaft 43 .

As an embodiment of the present invention, the winding unit 4 also includes a push-pull driving device 44, which is fixed on the inner wall of the other side of the installation cavity 30;

The push-pull drive device 44 has a telescopic arm 441, and the roller shaft 43 is rotatably connected to the telescopic arm 441.

As an embodiment of the present invention, the fixed seat of the rewinding drive device 45 is installed on the telescopic arm 441, and the rewinding driving wheel is fixed at the output end of the rewinding drive device 45;

A winding driven wheel is fixed on the winding roller shaft 43, and power is transmitted between the winding driven wheel and the winding driving wheel through a winding belt 46.

As an embodiment of the present invention, the installation cavity 30 causes the lower box 31 to be formed with a first wall plate 311 and a second wall plate 312;

The driven roller 41 is fixedly installed on the first wall panel 311 through the driven roller frame 411 .

As an embodiment of the present invention, the partition 60 is installed in the garbage bag placing cavity 100 so as to be liftable and lowerable through the lifting unit 6 .

As an embodiment of the present invention, the lifting unit 6 includes

A lifting driving device 63 is fixedly arranged at the bottom of the partition 60, and the lifting driving device 63 is connected with a first output shaft and a second output shaft;

Two first lifting gears 61, which are rotatably installed on the bottom side of the partition 60;

Two second lifting gears 62, which are rotatably installed on the other side of the bottom of the partition 60;

a first driven bevel gear 641, which is arranged to rotate synchronously with the two first lifting gears 61; and

a second driven bevel gear 642, which is arranged to rotate synchronously with the two second lifting gears 62;

Among them, a first driving bevel gear 631 capable of meshing with the first driven bevel gear 641 is fixed on the first output shaft; a second driving bevel gear 631 capable of meshing and transmitting with the second driven bevel gear 642 is fixed on the second output shaft. bevel gear 632;

The lifting unit 6 also includes four racks 105 vertically fixed in the garbage bag insertion cavity 100; two first lifting gears 61 and two second lifting gears 62 can be connected to the four racks 105 correspondingly. The linked partition 60 is used for lifting and lowering operations.

As an embodiment of the present invention, a smart trash can that automatically closes according to the amount of garbage also includes a closing unit 2 provided at the bottom of the bottom cover 11, which is used to seal the garbage bag body 51 containing garbage.

As an embodiment of the present invention, the closing unit 2 includes a first closing rod 21 and a second closing rod 22 arranged in parallel that can be synchronously approached or synchronously moved away, and also includes a third closing rod 23;

The third closing rod 23, the first closing rod 21, and the second closing rod 22 are all arranged vertically, and the three closing rods can collect the mouth of the garbage bag body 51 under the action of the closing driving device.

As an embodiment of the present invention, the closing drive device includes

The first closing drive motor 241 is capable of driving the first closing belt 251 and the second closing belt 252 arranged in parallel to perform synchronous transmission operations; and

The second closing drive motor 242 can drive the third closing belt 253 to perform conveying operations;

Among them, the first closing rod 21 is fixedly connected to one side of the third closing belt 253, and the second closing rod 22 is fixedly connected to the other side of the third closing belt 253; both sides of the third closing rod 23 The ends are respectively fixedly connected to the belt bodies on the same side of the first cuffing belt 251 and the second cuffing belt 252 .

As an embodiment of the present invention, the closing unit 2 also includes a heating wire module 9, which is fixed at the bottom of the bottom cover 11 and is used for closing the first closing rod 21, the second closing rod 22 and the third closing rod 23 after the closing operation is completed. The bag mouth of the garbage bag body 51 is fused.

As an embodiment of the present invention, a smart trash can that automatically closes according to the amount of garbage also includes a touch switch 7, which is provided at the bottom of the closing unit 2 for sensing the garbage contained in the garbage bag body 51. top position.

As an embodiment of the present invention, the touch switch 7 is installed at the bottom of the first closing rod 21 .

As an embodiment of the present invention, the touch switch 7 is installed at the bottom of the third closing rod 23 .

As an embodiment of the present invention, a ventilation cavity 101 is formed in the barrel body 10 and is connected to the garbage bag insertion cavity 100;

A fan 8 for sucking the garbage bag body 51 into the garbage bag insertion cavity 100 is installed in the ventilation cavity 101 .

As an embodiment of the present invention, the barrel body 10 is provided with a first ventilation opening 103 for connecting the garbage bag insertion cavity 100 and the ventilation cavity 101 and a second ventilation opening 104 for connecting the ventilation cavity 101 with the outside world; the first ventilation opening The port 103 is provided in the lower space of the partition 60 .

As an embodiment of the present invention, a plurality of air suction holes 600 are opened on the partition 60 .

The smart trash can that automatically closes according to the amount of garbage has the following three working modes:

During the use of the smart trash can, the three closing levers are in an open state, and garbage is put into the garbage bag body 51 filled in the garbage bag insertion cavity 100 from the entrance.

1. When the user needs to pack the garbage bag body 51 containing garbage, the three closing rods first run a set distance at the same time to initially collect the mouth of the garbage bag body 51. ;

If the top of the garbage in the garbage bag is exactly at the bag opening of the garbage bag body 51, the touch switch 7 provided at the bottom of the closing unit can contact the top position of the garbage in the garbage bag body 51; thereafter, the three closing rods Continue to gather until the mouth of the garbage bag body 51 is gathered together, and the third closing belt 253 pushes the mouth of the garbage bag body 51 to the side of the heating wire module 9; the heating wire module 9 passes electric energy Work is performed to seal and fuse the mouth of the garbage bag body 51 .

2. After the closing unit 2 performs preliminary closing processing, if there is less garbage in the garbage bag and it is not enough for the top position of the garbage to touch the touch switch 7, the push-pull driving device 44 will operate first, and it will move toward the driven roll. The roller 41 pushes the active winding roller 42 so that the driven winding roller 41 and the active winding roller 42 clamp the garbage bag body 51 located in the installation cavity 30; subsequently, the lifting drive device 63 and the winding drive device 45 work simultaneously , the lifting drive device 63 links the partition 60 to lift the bottom of the garbage bag body 51 containing garbage upward, and the winding drive device 45 links the active roller 42 to pull the garbage bag body 51 back to the installation cavity 30 , so that the garbage bag body 51 located in the garbage bag insertion cavity 100 is always in a tightened state. During this process, the upward movement distance of the partition 60 is consistent with the length of the active roller 42 rewinding the garbage bag body 51 ; When the top of the garbage in the garbage bag body 51 contacts the touch switch 7, the lifting drive device 63 and the winding drive device 45 stop working at the same time, and the three closing rods continue to close until the mouth of the garbage bag body 51 is closed. are gathered together, and the third closing belt 253 pushes the bag mouth of the garbage bag body 51 to the side of the heating wire module 9; the heating wire module 9 uses electric energy to push the bag mouth of the garbage bag body 51. Sealing and fusing.

3. If during the initial gathering process of the closing unit 2, the top position of the garbage has touched the touch switch 7, it means that the amount of garbage put into the garbage bag body 51 is too large and it is difficult to remove it through the closing unit 2. Carry out the packing operation; after the top of the garbage touches the touch switch 7, the closing unit 2 stops working and the lifting drive device 63 starts to operate. The partition 60 moves downwards to a set height under the action of the lifting drive device 63, and then closes The unit 2 continues to perform the preliminary gathering process, and so on, until the closing unit 2 can completely perform the preliminary gathering process; the subsequent lifting drive device 63 and the winding drive device 45 work at the same time, so that the garbage bag body containing the garbage 51 moves upward, when the top position of the garbage touches the touch switch 7 again, the three closing rods continue to close until the mouth of the garbage bag body 51 is gathered together, and the third closing belt 253 closes the garbage bag The bag opening of the bag body 51 is pushed to the side of the heating wire module 9; the heating wire module 9 uses electric energy to seal and fuse the bag opening of the garbage bag body 51.

After the heating wire module 9 has processed the bag opening of the garbage bag body 51, the three closing rods return to the open state; after the user opens the bottom cover 11 to take out the garbage and closes the bottom cover 11, the lifting drive device 63 is connected The moving partition 60 moves to the depth set by the system, and the fan 8 starts to run, filling the garbage bag body 51 into the garbage bag insertion cavity 100 again.

It can be seen from the three working modes that the rewinding unit 4 only participates in the operation when the partition 60 moves upward. In this case, after the heating wire module 9 seals and melts the garbage bag body 51, the push-pull driving device 44 can be in time. Pull the driving roller 42 away from the driven roller 41 to avoid resistance when filling the garbage bag body 51 downward.

Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and embodiments. They can be applied to various fields suitable for the present invention. For those familiar with the art, they can easily Additional modifications may be made and the invention is therefore not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalent scope.

Claims (8)

1. A smart trash can that automatically closes according to the amount of garbage, which is characterized by including: The barrel body (10) has a garbage bag insertion cavity (100) inside, and a partition (60) is installed in the garbage bag insertion cavity (100) so as to be lifted and lowered; The bottom cover (11) is reversibly provided at the top rear end of the barrel body (10) to facilitate the user to take out the sealed garbage bag containing garbage. The center part of the bottom cover (11) An entrance is provided for putting in garbage, and a garbage bag box (3) is detachably installed on the periphery of the entrance; Among them, several winding units (4) are installed in the garbage bag box (3), which can cooperate with the partition (60) in the rising state so that the garbage bag is placed in the cavity (100). The garbage bag body (51) in the bag is always in a tightened state to facilitate the sealing operation of the garbage bag body (51); It also includes a closing unit (2) and a touch switch (7) arranged at the bottom of the bottom cover (11). The closing unit (2) is used to seal the garbage bag body (51) containing garbage. Operation; a touch switch (7) is provided at the bottom of the closing unit (2) for sensing the top position of the garbage contained in the garbage bag body (51); Among them, when the garbage bag needs to be packed, the closing unit (2) is controlled to perform preliminary closing. When the top of the garbage bag happens to touch the touch switch, the closing unit tightens and seals the garbage bag body; if the garbage bag is initially closed When the top position of the middle garbage does not touch the touch switch (7), the partition (60) is controlled to lift the garbage bag body to move upward, and the rewinding unit (4) is controlled to pull the garbage bag body back into the garbage bag. In the box (3), so that the garbage bag body in the garbage bag placement cavity is always in a tightened state, when the top of the garbage bag touches the touch switch, the closing unit tightens and seals the garbage bag body; if During the preliminary gathering process, when the garbage in the garbage bag body has touched the touch switch (7), the control partition moves downward and continues the preliminary gathering process until the closing unit can preliminary gather the garbage bag body so that The garbage bag body completes the sealing operation. 2. The smart trash can that automatically closes according to the amount of garbage according to claim 1, characterized in that the garbage bag box (3) includes a lower box body (31) and a detachably installed lower box body (31). The upper box body (32) on the upper box body (31); the lower box body (31) is provided with an installation cavity (30) for placing continuous and uninterrupted garbage bag rolls (5); A plurality of the winding units (4) are circumferentially fixed in the installation cavity (30). 3. The smart trash can that automatically closes according to the amount of garbage according to claim 2, characterized in that the winding unit (4) includes A driven roller (41), which is rotatably fixed on one inner wall of the installation cavity (30); An active winding roller (42) is arranged opposite to the driven winding roller (41). The active winding roller (42) is rotatably and movably installed on the inner wall of the other side of the installation cavity (30). on; and A winding drive device (45) is used to provide rotational power to the active winding roller (42) when the active winding roller (42) and the driven winding roller (41) are in pressure contact. 4. The smart trash can that automatically closes according to the amount of garbage according to claim 3, characterized in that the active roller (42) is installed in another part of the installation cavity (30) through an active roller frame (421). on one side of the inner wall; A roller shaft (43) is fixed on the active roller (42), and a slide (420) is provided on the active roller frame (421) to limit the movement of the roller shaft (43); The winding unit (4) also includes a push-pull driving device (44), which is fixed on the inner wall of the other side of the installation cavity (30); The push-pull drive device (44) has a telescopic arm (441), and the roller shaft (43) is rotatably connected to the telescopic arm (441). 5. The smart trash can that automatically closes according to the amount of garbage according to claim 1, characterized in that the partition (60) is elevatingly installed in the garbage bag insertion cavity (100) through a lifting unit (6). ), the lifting unit (6) includes A lifting driving device (63), which is fixedly arranged at the bottom of the partition (60), and the lifting driving device (63) is connected with a first output shaft and a second output shaft; Two first lifting gears (61), which are rotatably installed on the bottom side of the partition (60); Two second lifting gears (62), which are rotatably installed on the other side of the bottom of the partition (60); a first driven bevel gear (641), which is arranged to rotate synchronously with the two first lifting gears (61); and A second driven bevel gear (642), which is arranged to rotate synchronously with the two second lifting gears (62); Wherein, a first driving bevel gear (631) capable of meshing with the first driven bevel gear (641) is fixed on the first output shaft; and a first driving bevel gear (631) capable of meshing with the first driven bevel gear (641) is fixed on the second output shaft. The second driven bevel gear (642) meshes with the second driving bevel gear (632); The lifting unit (6) also includes four racks (105) fixed vertically in the garbage bag insertion cavity (100); two first lifting gears (61) and two second lifting gears (61). The lifting gear (62) can be connected to the four racks (105) correspondingly to link the lifting operation of the partition (60). 6. The smart trash can that automatically closes according to the amount of garbage according to claim 1, characterized in that the closing unit (2) includes a first closing rod (21) arranged in parallel that can be synchronously approached or synchronously moved away. The second closing rod (22) also includes a third closing rod (23); The third closing rod (23), the first closing rod (21), and the second closing rod (22) are all arranged vertically, and the three can adjust the garbage bag under the action of the closing driving device. The bag mouth of the bag body (51) is gathered. 7. The smart trash can that automatically closes according to the amount of garbage according to claim 1, characterized in that the closing unit (2) also includes a heating wire module (9), which is fixed at the bottom of the bottom cover (11) , for fusing the bag mouth of the garbage bag body (51). 8. The smart trash can that automatically closes according to the amount of garbage according to claim 1, characterized in that the barrel body (10) is formed with a ventilation cavity (100) connected to the garbage bag insertion cavity (100). 101); A fan (8) for sucking the garbage bag body (51) into the garbage bag insertion cavity (100) is installed in the ventilation cavity (101).