CN109573401B

CN109573401B - Garbage can capable of preventing children from opening garbage can by mistake

Info

Publication number: CN109573401B
Application number: CN201811453535.9A
Authority: CN
Inventors: 王涵
Original assignee: Individual
Current assignee: Linyi Wilson New Materials Co ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2021-03-12
Anticipated expiration: 2038-11-30
Also published as: CN109573401A; CN112693779B; CN112693779A

Abstract

The invention belongs to the technical field of environmental sanitation, and particularly relates to a garbage can capable of preventing children from opening by mistake, which comprises a containing can, a return groove and a can cover mechanism, wherein the return groove is formed in the upper end of the containing can along the periphery of a can opening; the barrel cover mechanism is arranged at the upper end of the accommodating barrel, and the lower end of the barrel cover mechanism is embedded into the return groove; the first transmission mechanism of the garbage can and the second swing cover plate in the second transmission mechanism realize pre-compaction of the garbage before the garbage falls into the garbage can; after compaction of the garbage in the garbage can is finished, the first swinging cover plate is continuously pressed, the second swinging cover plate swings upwards around the corresponding second swinging shaft, and the garbage falls into the garbage can without being blocked; after rubbish falls into the garbage bin, first swing apron and the automatic back swing of second swing apron among first drive mechanism and the second drive mechanism are to initial position to the entry of self-closing garbage bin prevents that children from touching down garbage bin back rubbish and can not spill out and make dirty children, guarantees that children's health and the health at home are not influenced.

Description

Garbage can capable of preventing children from opening garbage can by mistake

Technical Field

The invention belongs to the technical field of environmental sanitation, and particularly relates to a garbage can capable of preventing children from opening by mistake.

Background

At present, the traditional garbage cans are roughly divided into two types, one type is provided with a cover, and the other type is not provided with the cover; the garbage can with the cover or the garbage can without the cover does not have good sealing property on the garbage; when the garbage in the garbage can is full, the garbage must be compacted downwards by foreign objects when the garbage is thrown inwards again so as to accommodate more garbage; the selectivity of the toy by the baby or the child with certain mobility is very wide, the toy is very curious about all the viewed fresh things, and if the garbage can placed in the corner of the hall is found by the child, the child can grab the garbage can to play until the child is tired; once the garbage can played by children is knocked over, garbage in the garbage can be scattered out, so that the household sanitation is influenced, and the health of children is influenced by dirtying the children; we have devised a bin for pre-compacting refuse and preventing accidental opening by children.

The invention designs a garbage can capable of preventing children from opening by mistake and solves the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a trash can capable of preventing children from opening by mistake, which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention usually place when using, and are only used for convenience of description and simplification of description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The utility model provides a prevent garbage bin that children opened by mistake which characterized in that: the barrel comprises a containing barrel, a return groove and a barrel cover mechanism, wherein the return groove is formed in the upper end of the containing barrel along the periphery of a barrel opening; the barrel cover mechanism is arranged at the upper end of the accommodating barrel, and the lower end of the barrel cover mechanism is embedded into the return groove.

The barrel cover mechanism comprises a barrel cover, a transmission groove, an inlet, a T-shaped sliding groove, a cover plate sliding groove, a limiting seat, a shaft groove, a limiting sliding groove, a rotary circular groove, a first transmission mechanism and a second transmission mechanism, wherein the barrel cover is internally provided with the transmission groove which is communicated with the lower end surface of the barrel cover; an inlet is formed in the center of the upper end face of the barrel cover and is vertically communicated with the transmission groove; two T-shaped sliding grooves are formed in two opposite side walls of the transmission groove respectively in the vertical direction, and the two T-shaped sliding grooves in each side wall are symmetrical with respect to the central plane of the barrel cover; a cover plate sliding groove tangent to the adjacent side wall is formed at the lower end of each T-shaped sliding groove close to the adjacent side wall, and the cover plate sliding groove is transversely communicated with the corresponding T-shaped sliding groove; a through shaft groove is formed between two opposite side end faces on the limiting seat, and the inner wall of the lower end of the shaft groove is a semi-circular arc face; the inner wall of the upper end of the shaft groove is provided with a limiting sliding groove; a rotary circular groove is formed in the inner wall of the lower end of the shaft groove and is communicated with the limiting sliding groove up and down; the two limiting seats are arranged on two sides of an inlet on the upper end surface of the transmission groove, and are symmetrical about the central plane of the inlet; the first transmission mechanism and the second transmission mechanism are arranged in the transmission groove and are respectively positioned at two sides of the inlet; the first transmission mechanism and the second transmission mechanism are respectively matched with the two limiting seats; the first transmission mechanism is matched with two T-shaped sliding grooves and two cover plate sliding grooves which are arranged on two opposite side walls in the transmission groove and are positioned on the same side of the inlet; the second transmission mechanism is matched with two T-shaped sliding grooves and two cover plate sliding grooves which are arranged on two opposite side walls in the transmission groove and are positioned on the other side of the inlet.

The inner structures of the first transmission mechanism and the second transmission mechanism are completely the same, and are symmetrical about the central plane of the barrel cover; for a first transmission mechanism, the first transmission mechanism comprises a reset rod mechanism, a first connecting block, a first sliding cover plate, a first swinging cover plate, a second connecting block, a first swinging shaft, a limiting rotating block, a first belt wheel, a synchronous belt, a second belt wheel, a transmission shaft, a first bevel gear, a second fixed seat, a first telescopic rod, a first telescopic sleeve, a third bevel gear, a third fixed seat, a fourth bevel gear, a second swinging shaft, a third connecting block, a second swinging cover plate, a support lug, a second sliding cover plate, a fourth connecting block, a first fixed seat and a sliding hole, wherein the two reset rod mechanisms are respectively arranged on two opposite side walls in the transmission groove and in two T-shaped sliding grooves which are positioned on the same side of an inlet; two support lugs are symmetrically arranged on the upper end surface of the second sliding cover plate along the length direction of the second sliding cover plate; a through shaft hole is formed between the upper end surface and the lower end surface of the horizontal part of the third fixed seat; the third fixed seat is arranged on the upper end face of one end of the second sliding cover plate and is positioned outside the support lug; the two ends of the second sliding cover plates are respectively in sliding fit with the two cover plate sliding grooves at the two reset rod mechanisms and are arranged in the transmission grooves, and the two ends of the two second sliding cover plates are respectively connected with the lower ends of the two reset rod mechanisms through fourth connecting blocks; the two fourth connecting blocks are respectively positioned in the two cover plate sliding grooves; two third connecting blocks are symmetrically arranged at the edge of the upper end surface of the second swing cover plate along the length direction of the second swing cover plate; the two third connecting blocks are hinged with the two support lugs on the second sliding cover plate through a second swing shaft; the second swing shaft is fixedly connected with the third connecting block; the second swing shaft is matched with the support lug through a bearing; a fourth bevel gear is arranged at one end of the second swing shaft, which is positioned at the third fixed seat; a through sliding hole is formed between the upper end surface and the lower end surface of the first sliding cover plate, and the sliding hole is positioned in the center of the edge of the first sliding cover plate in the length direction; the first sliding cover plate is positioned above the second sliding cover plate, and the limiting seat positioned above the first sliding cover plate penetrates through the sliding hole in the first sliding cover plate from top to bottom.

Two ends of the first sliding cover plate are fixedly connected with the upper ends of the two reset rod mechanisms through first connecting blocks respectively; a through shaft hole is formed between the upper end surface and the lower end surface of the upper horizontal part of the second fixed seat; the second fixed seat is arranged on the lower end face of the first sliding cover plate and is positioned right above the third fixed seat; the first telescopic rod is arranged on the second fixed seat in a matching way through the bearing of the shaft hole on the outer circular surface of the first telescopic rod and the second fixed seat; the second bevel gear is arranged at the upper end of the telescopic rod; the first telescopic sleeve is matched with a bearing of a shaft hole on the third fixed seat through the outer circular surface of the first telescopic sleeve; the third bevel gear is arranged at the lower end of the first telescopic sleeve and meshed with the fourth bevel gear; the upper end of the first telescopic sleeve is nested at the lower end of the first telescopic rod in a matching way of the guide block and the guide groove; the first fixed seat is arranged on the lower end face of the first sliding cover plate and is positioned near the second fixed seat; the first bevel gear and the second belt wheel are mounted on the first fixed seat through a transmission shaft, and the central axis of the transmission shaft is parallel to the central axis of the second swing shaft below the transmission shaft; the first swing shaft penetrates through a shaft groove on the limiting seat and is arranged between the two reset rod mechanisms, and two ends of the first swing shaft are respectively matched with the upper ends of the two reset rod mechanisms; the first belt wheel is arranged on the first swing shaft and is connected with the second belt wheel through a synchronous belt; the first belt wheel is fixedly connected with the first swing shaft; the center of the side end surface of the limiting rotating block is provided with a through shaft hole; the upper end surface and the lower end surface of the limiting rotating block are semicircular surfaces; the limiting rotating block is positioned in a limiting sliding groove in the limiting seat and is embedded on the first swing shaft; the limiting rotating block is fixedly connected with the first swing shaft; the first swing cover plate is positioned above the second swing cover plate in the transmission groove; the first swing cover plate is fixedly connected with the first swing shaft through two second connecting blocks, and the length direction of the first swing cover plate is parallel to the central axis of the first swing shaft.

The reset rod mechanism comprises a telescopic column, a first reset spring, a second sliding block, a second telescopic sleeve, a second telescopic rod, a second reset spring, a first sliding block and a movable circular groove, wherein the lower end of the telescopic column is fixedly connected with the bottom surface of the T-shaped sliding groove; the second sliding block is positioned in the T-shaped sliding groove and is arranged at the upper end of the telescopic column; the first return spring is nested on the telescopic column, and two ends of the first return spring are respectively connected with the bottom surface of the T-shaped sliding groove and the lower end surface of the second sliding block; the second telescopic sleeve is positioned in the T-shaped sliding groove, and the lower end of the second telescopic sleeve is fixedly connected with the upper end face of the second sliding block; the second telescopic rod is positioned in the T-shaped sliding groove, and the lower end of the second telescopic rod is inserted into the second telescopic sleeve; a movable circular groove is formed in one side end face of the first sliding block; the first sliding block is positioned in the T-shaped sliding groove, and the lower end face of the first sliding block is fixedly connected with the upper end face of the second telescopic rod; the movable circular grooves in the first sliding blocks in the two reset rod mechanisms are opposite; two first sliding blocks in the two reset rod mechanisms are fixedly connected with two ends of a first sliding cover plate through first connecting blocks respectively; two second sliding blocks in the two reset rod mechanisms are connected with two ends of a second sliding cover plate through a fourth connecting block; two ends of the first swing shaft are respectively inserted into the movable circular grooves on the two first sliding blocks; the first swing shaft is matched with the two first sliding blocks through bearings.

As a further improvement of the present technology, the diameter of the first pulley is equal to the diameter of the second pulley.

As a further improvement of the technology, the diameter of the first bevel gear is equal to that of the second bevel gear, and the diameter of the third bevel gear is larger than that of the fourth bevel gear.

As a further improvement of the technology, the central axis of the lower end of the shaft groove on the limiting seat is superposed with the central axis of the rotary circular groove.

As a further improvement of the technology, the arc radiuses of the arc surfaces at the upper end and the lower end of the limiting rotating block are equal, and the arc center axes of the two arc surfaces are overlapped with the central axis of the first swing shaft.

As a further improvement of the technology, the arc radiuses of the cambered surfaces at the upper end and the lower end of the limiting rotating block are equal to the inner circle radius of the rotating circular groove.

As a further improvement of the present technology, the first return spring is a compression spring.

As a further improvement of the present technology, the second return spring is a compression spring.

In the invention, in an initial state, the first swing cover plate and the first sliding cover plate are positioned on the same horizontal plane, and the second swing cover plate and the second sliding cover plate are positioned on the same horizontal plane.

The first transmission mechanism and the second transmission mechanism are designed to ensure that when garbage is thrown into the garbage can, a first swinging cover plate in the first transmission mechanism and the second transmission mechanism is pressed down by hands, and the first swinging cover plate in the first transmission mechanism and the second transmission mechanism drives a corresponding first belt wheel and a corresponding limiting rotating block to rotate around the central axis of a first swinging shaft through a corresponding second connecting block and a corresponding first swinging shaft; the rotation of the limiting rotating block is limited by the limiting sliding groove at the moment and can not rotate, so that the first swing cover plates in the first transmission mechanism and the second transmission mechanism drive the first sliding blocks in the reset rod mechanisms at two ends of the first swing shaft to slide downwards along the corresponding T-shaped sliding grooves through the corresponding second connecting blocks, the first swing shaft and the limiting rotating block under the action of being pressed, the second telescopic rods in the two reset rod mechanisms contract downwards along the corresponding telescopic grooves in the second telescopic sleeves, and the second reset springs in the reset rod mechanisms are compressed; under the action of a second reset spring, second sliding blocks in the two reset rod mechanisms move downwards along corresponding T-shaped sliding grooves to press corresponding first reset springs, and telescopic columns in the first reset springs are shortened; the first sliding blocks in the first transmission mechanism and the second transmission mechanism drive the first sliding cover plate connected with the first transmission mechanism to slide downwards along the inner wall of the transmission groove and the sliding hole through the corresponding first connecting blocks; the limiting rotating blocks in the first transmission mechanism and the second transmission mechanism slide downwards along the corresponding limiting sliding grooves; the second sliding blocks in the first transmission mechanism and the second transmission mechanism drive the second sliding cover plate and the second swinging cover plate to synchronously move downwards along the inner wall of the transmission groove through corresponding fourth connecting blocks; the downward movement of the second sliding cover plate and the second swinging cover plate realizes that the garbage in the garbage can is pre-pressed downwards before the garbage is thrown into the garbage can, so that the garbage in the garbage can is more compact to contain more garbage; the first belt wheel fixedly connected with the first swing shaft does not rotate in the gliding process of the limiting rotating block, and the fourth bevel gear in indirect transmission relation with the first belt wheel does not rotate, so that the second swing cover plate cannot swing upwards around the central axis of the second swing shaft when garbage happens; therefore, pre-compression of the garbage in the garbage can is better realized, and the space in the garbage can is increased to accommodate more garbage; when the limiting rotary blocks in the first transmission mechanism and the second transmission mechanism finish sliding along the corresponding limiting sliding grooves and enter the rotating circular grooves completely positioned at the lower ends of the limiting sliding grooves, the limiting sliding grooves relieve the limitation on the limiting rotary blocks, first swinging cover plates in the first transmission mechanism and the second transmission mechanism are continuously pressed, and the first swinging cover plates in the first transmission mechanism and the second transmission mechanism drive first swinging shafts in the first transmission mechanism and the second transmission mechanism to rotate through corresponding second connecting blocks; first swing shafts in the first transmission mechanism and the second transmission mechanism drive corresponding first belt wheels and limiting rotary blocks to synchronously rotate; the diameter of the first belt wheel is equal to that of the second belt wheel, so that the first belt wheel in the first transmission mechanism and the second transmission mechanism drives the corresponding second belt wheel and the corresponding first bevel gear to synchronously rotate at a constant speed through the corresponding synchronous belt; the diameter of the first bevel gear is equal to that of the second bevel gear, so that the second bevel gear drives the corresponding third bevel gear to synchronously rotate at a constant speed through the second telescopic rod and the second telescopic sleeve; the third bevel gear drives a fourth bevel gear meshed with the third bevel gear to rotate, and the rotating direction of the fourth bevel gear is opposite to that of the first belt pulley; the diameter of the third bevel gear is larger than that of the fourth bevel gear, so that the rotating speed of the fourth bevel gear is larger than that of the third bevel gear, further the rotating speed of the fourth bevel gear is larger than that of the first belt wheel, the fourth bevel gears in the first transmission mechanism and the second transmission mechanism drive the corresponding second swing cover plates to swing upwards around the central axis of the second swing shaft through the corresponding second swing shaft and the third connecting block, and the swinging speeds of the second swing cover plates in the first transmission mechanism and the second transmission mechanism are larger than those of the corresponding first swing cover plates; the swinging of the second swinging cover plate does not interfere with the swinging of the first swinging cover plate, and the second swinging cover plate does not obstruct the garbage falling from the upper part; when the garbage falls into the accommodating barrel, the first swing cover plate in the first transmission mechanism and the second transmission mechanism is not pressed any more; swinging back under the action of the dead weight of a second swinging cover plate in the first transmission mechanism and the second transmission mechanism; a second swing cover plate in the first transmission mechanism and the second transmission mechanism sequentially passes through a corresponding third connecting block, a second swing shaft, a fourth bevel gear, a third bevel gear, a second telescopic sleeve, a second telescopic rod, a second bevel gear, a first bevel gear, a second belt wheel, a transmission shaft, a first belt wheel, a first swing shaft and a second connecting block to drive the corresponding first swing cover plate to swing back to a horizontal position; the first swing shaft drives the limiting rotating block to swing back to a vertical state; under the action of a first return spring and a second return spring, a first sliding block and a second sliding block in a first transmission mechanism and a second transmission mechanism slide upwards along corresponding T-shaped sliding grooves to return to initial positions, and the second sliding block drives corresponding second sliding cover plates and corresponding second swinging cover plates to move upwards to the initial positions through a third connecting block connected with the second sliding block; the first sliding block drives the corresponding first sliding cover plate and the corresponding first swinging cover plate to move upwards to an initial position through the first connecting block connected with the first sliding block; under the drive of the first swing shaft, the limiting rotating blocks in the first transmission mechanism and the second transmission mechanism move upwards and enter the corresponding limiting sliding grooves and return to the initial positions; when children touch and fall the garbage bin, the rubbish in the garbage bin can not spill out, can not influence the health at home, and children can not be stained by rubbish yet to the children who play the garbage bin are healthy have been guaranteed.

The central axis of the lower end of the shaft groove on the limiting seat is superposed with the central axis of the rotary circular groove, the arc radiuses of the arc surfaces at the upper end and the lower end of the limiting rotary block are equal, the arc central axes of the two arc surfaces are superposed with the central axis of the first swing shaft, and the arc radiuses of the arc surfaces at the upper end and the lower end of the limiting rotary block are equal to the inner circle radius of the rotary circular groove; the first swing cover plate in the first transmission mechanism and the second transmission mechanism is continuously pressed down, and as the central axis of the lower end of the shaft groove on the limiting seat is superposed with the central axis of the rotary circular groove, the arc radiuses of the arc surfaces at the upper end and the lower end of the limiting rotary block are equal, and the arc central axes of the two arc surfaces are superposed with the central axis of the first swing shaft, the limiting rotary blocks in the first transmission mechanism and the second transmission mechanism rotate around the corresponding central axes of the first swing shaft in a seamless mode; in the process that the first swing cover plate swings downwards around the central axis of the corresponding first swing shaft, the first swing shaft drives the corresponding second swing cover plate to swing upwards around the central axis of the corresponding second swing shaft through the corresponding first belt wheel, the synchronous belt, the second belt wheel, the first bevel gear, the second bevel gear, the third bevel gear, the fourth bevel gear, the second swing shaft and the third connecting block, and therefore the falling garbage is not blocked.

Compared with the traditional garbage can, the first transmission mechanism and the second transmission mechanism of the garbage can have the advantages that the second swing cover plates realize pre-compaction of garbage before the garbage falls into the garbage can, and the space in the garbage can is increased to accommodate more garbage; after the first transmission mechanism and the second transmission mechanism compact the garbage in the garbage can, the second swing cover plates in the first transmission mechanism and the second transmission mechanism swing upwards around the corresponding second swing shafts, and the garbage falls into the garbage can without being hindered; when the garbage falls into the garbage can, the first swinging cover plate is not pressed any more, and the first swinging cover plate and the second swinging cover plate in the first transmission mechanism and the second transmission mechanism automatically swing back to the initial positions, so that the inlet of the garbage can is automatically closed, the garbage is prevented from spilling out to pollute the children after the children touch and fall the garbage can, and the health of the children and the domestic sanitation are not influenced; the invention has simple structure and better use effect.

Drawings

Fig. 1 is a schematic view of a trash can.

Fig. 2 is a schematic sectional view of the trash can.

Fig. 3 is a schematic view of the containment drum.

Fig. 4 is a perspective schematic view of a lid mechanism.

Fig. 5 is a schematic cross-sectional view of a lid mechanism.

Fig. 6 is a schematic cross-sectional view of the first transmission mechanism and the barrel cover of the barrel cover mechanism.

Fig. 7 is a perspective view of the barrel cover and the limiting seat.

Fig. 8 is a schematic cross-sectional view of the barrel cover and the limiting seat.

Fig. 9 is a schematic perspective sectional view of a lid of a bucket.

Fig. 10 is a perspective schematic view of the spacing block.

FIG. 11 is a cross-sectional view of the stopper seat.

Fig. 12 is a schematic view of the first transmission mechanism, the limiting seat and the second transmission mechanism.

Fig. 13 is a schematic view of the first transmission mechanism and the limiting seat.

FIG. 14 is a cross-sectional view of the first transmission mechanism and the limiting seat.

FIG. 15 is a schematic view of the second sliding cover and the second swinging cover of the first transmission mechanism.

Fig. 16 is a schematic view of the first swing cover, the first connecting block, the first pulley, the limiting rotation block, and the first swing shaft.

Fig. 17 is a schematic view of the first sliding cover plate, the second connecting block, the first sliding block, the first fixing seat and the second fixing seat.

FIG. 18 is a schematic view of the second swing cover, the third connecting block, the second swing shaft and the fourth bevel gear.

FIG. 19 is a schematic view of the second sliding cover, the supporting lug and the third fixing seat.

Fig. 20 is a schematic view of the transmission fit of a limiting rotation block, a first swing shaft, a first belt wheel, a synchronous belt, a second belt wheel, a first bevel gear, a second bevel gear, a first telescopic rod, a first telescopic sleeve, a third bevel gear, a fourth bevel gear and a second swing shaft.

Fig. 21 is a schematic view of the first sliding cover, the release lever mechanism and the second sliding cover.

Fig. 22 is a cross-sectional schematic view of the reset lever mechanism.

Number designation in the figures: 1. a containment drum; 2. a circular groove; 3. a barrel cover mechanism; 4. a barrel cover; 5. a transmission groove; 6. an inlet; 7. a T-shaped chute; 8. a cover plate chute; 9. a limiting seat; 10. a shaft groove; 11. a limiting chute; 12. rotating the circular groove; 13. a first transmission mechanism; 14. a second transmission mechanism; 15. a reset lever mechanism; 16. a telescopic column; 17. a first return spring; 18. a second slider; 19. a second telescopic sleeve; 20. a second telescopic rod; 21. a second return spring; 22. a first slider; 23. a movable circular groove; 24. a first connection block; 25. a first sliding cover plate; 26. a first swing cover plate; 27. a second connecting block; 28. a first swing shaft; 29. a limiting rotating block; 30. a first pulley; 31. a synchronous belt; 32. a second pulley; 33. a drive shaft; 34. a first bevel gear; 35. a second bevel gear; 36. a second fixed seat; 37. a first telescopic rod; 38. a first telescopic sleeve; 39. a third bevel gear; 40. a third fixed seat; 41. a fourth bevel gear; 42. a second swing shaft; 43. a third connecting block; 44. a second swing cover plate; 45. supporting a lug; 46. a second sliding cover plate; 47. a fourth connecting block; 48. a first fixed seat; 49. and (4) a slide hole.

Detailed Description

As shown in fig. 1, the container comprises a containing barrel 1, a return groove 2 and a barrel cover 4 mechanism 3, wherein as shown in fig. 3, the return groove 2 is arranged at the upper end of the containing barrel 1 along the periphery of a barrel opening; as shown in fig. 2, the lid 4 mechanism 3 is installed at the upper end of the containing barrel 1, and the lower end of the lid 4 mechanism 3 is embedded in the return groove 2.

As shown in fig. 4, 5 and 6, the barrel cover 4 mechanism 3 includes a barrel cover 4, a transmission groove 5, an inlet 6, a T-shaped chute 7, a cover plate chute 8, a limiting seat 9, a shaft groove 10, a limiting chute 11, a rotary circular groove 12, a first transmission mechanism 13 and a second transmission mechanism 14, wherein as shown in fig. 8, the barrel cover 4 is provided with the transmission groove 5, and the transmission groove 5 is communicated with the lower end surface of the barrel cover 4; as shown in fig. 7, an inlet 6 is formed in the center of the upper end surface of the tub cover 4, and the inlet 6 is vertically communicated with the transmission groove 5; as shown in fig. 9, two opposite side walls of the transmission groove 5 are respectively provided with two T-shaped sliding grooves 7 along the vertical direction, and the two T-shaped sliding grooves 7 on each side wall are symmetrical with respect to the central plane of the barrel cover 4; as shown in fig. 4, a cover plate chute 8 tangent to the adjacent side wall is arranged at the lower end of each T-shaped chute 7 close to the adjacent side wall, and the cover plate chute 8 is transversely communicated with the corresponding T-shaped chute 7; as shown in fig. 10, a through shaft groove 10 is formed between two opposite side end surfaces of the limiting seat 9, and the inner wall of the lower end of the shaft groove 10 is a semicircular arc surface; as shown in fig. 11, the inner wall of the upper end of the shaft groove 10 is provided with a limiting sliding groove 11; the inner wall of the lower end of the shaft groove 10 is provided with a rotary circular groove 12, and the rotary circular groove 12 is communicated with the limiting sliding groove 11 up and down; as shown in fig. 7 and 8, two limiting seats 9 are installed on two sides of the inlet 6 on the upper end surface of the transmission groove 5, and the two limiting seats 9 are symmetrical with respect to the central plane of the inlet 6; as shown in fig. 4, 5 and 6, the first transmission mechanism 13 and the second transmission mechanism 14 are installed in the transmission groove 5, and the first transmission mechanism 13 and the second transmission mechanism 14 are respectively positioned at two sides of the inlet 6; the first transmission mechanism 13 and the second transmission mechanism 14 are respectively matched with the two limiting seats 9; the first transmission mechanism 13 is matched with two T-shaped sliding chutes 7 and two cover plate sliding chutes 8 which are arranged on two opposite side walls in the transmission groove 5 and are positioned on the same side of the inlet 6; the second transmission mechanism 14 cooperates with two T-shaped runners 7 and two cover runners 8 on two opposite side walls of the transmission slot 5 and on the other side of the inlet 6.

As shown in fig. 12, the internal structures of the first transmission mechanism 13 and the second transmission mechanism 14 are completely the same, and are symmetrical about the central plane of the tub cover 4; as shown in fig. 13, 14, and 15, for the first transmission mechanism 13, it includes a reset lever mechanism 15, a first connecting block 24, a first sliding cover plate 25, a first swinging cover plate 26, a second connecting block 27, a first swinging shaft 28, a limit rotating block 29, a first pulley 30, a synchronous belt 31, a second pulley 32, a transmission shaft 33, a first bevel gear 34, a second bevel gear 35, a second fixed seat 36, a first telescopic rod 37, a first telescopic sleeve 38, a third bevel gear 39, a third fixed seat 40, a fourth bevel gear 41, a second swinging shaft 42, a third connecting block 43, a second swinging cover plate 44, a support lug 45, a second sliding cover plate 46, a fourth connecting block 47, a first fixed seat 48, and a sliding hole 49, wherein as shown in fig. 6, the two reset lever mechanisms 15 are respectively installed on two opposite side walls of the transmission groove 5 and located in two T-shaped chutes 7 of the inlet 6 on the same side; as shown in fig. 19, two lugs 45 are symmetrically mounted on the upper end surface of the second sliding cover 46 along the length direction thereof; a through shaft hole is formed between the upper end surface and the lower end surface of the horizontal part of the third fixed seat 40; the third fixing seat 40 is installed on the upper end face of one end of the second sliding cover plate 46, and the third fixing seat 40 is located on the outer side of the support lug 45; as shown in fig. 5 and 6, the second sliding cover 46 is installed in the transmission groove 5 through two ends of the second sliding cover respectively sliding-fitting with the two cover sliding grooves 8 at the two reset lever mechanisms 15, and two ends of the two second sliding covers 46 are respectively connected with the lower ends of the two reset lever mechanisms 15 through fourth connecting blocks 47; as shown in fig. 5 and 15, two fourth connecting blocks 47 are respectively located in the two cover plate sliding grooves 8; as shown in fig. 18, two third connecting blocks 43 are symmetrically installed at the edge of the upper end surface of the second swing cover 44 along the length direction thereof; as shown in fig. 15, two third connecting blocks 43 are hinged to two lugs 45 on the second sliding cover plate 46 through a second swing shaft; the second swing shaft is fixedly connected with the third connecting block 43; the second swing shaft is matched with the support lug 45 through a bearing; a fourth bevel gear 41 is arranged at one end of the second swing shaft positioned at the third fixed seat 40; as shown in fig. 17, a through slide hole 49 is formed between the upper and lower end surfaces of the first slide cover 25, and the slide hole 49 is located at the center of the edge of the first slide cover 25 in the length direction; as shown in fig. 6, the first sliding cover 25 is located above the second sliding cover 46, and the stopper 9 located above the first sliding cover passes through the sliding hole 49 of the first sliding cover 25 from top to bottom.

As shown in fig. 5, two ends of the first sliding cover plate 25 are fixedly connected with the upper ends of the two restoring rod mechanisms 15 through the first connecting blocks 24, respectively; as shown in fig. 17, a through shaft hole is formed between the upper and lower end surfaces of the upper horizontal portion of the second fixing seat 36; as shown in fig. 5 and 17, the second fixing seat 36 is installed on the lower end surface of the first sliding cover 25, and the second fixing seat 36 is located right above the third fixing seat 40; as shown in fig. 5, the first telescopic rod 37 is mounted on the second fixing base 36 through the outer circle surface thereof matching with the bearing of the shaft hole on the second fixing base 36; the second bevel gear 35 is arranged at the upper end of the telescopic rod; the first telescopic sleeve 38 is arranged on the third fixed seat 40 in a matching way through the bearing of the shaft hole on the outer circular surface of the first telescopic sleeve and the third fixed seat 40; the third bevel gear 39 is arranged at the lower end of the first telescopic sleeve 38, and the third bevel gear 39 is meshed with the fourth bevel gear 41; the upper end of the first telescopic sleeve 38 is nested at the lower end of the first telescopic rod 37 in a guide block and guide groove matching mode; as shown in fig. 17, the first fixing seat 48 is installed on the lower end surface of the first sliding cover 25, and the first fixing seat 48 is located near the second fixing seat 36; as shown in fig. 14, the first bevel gear 34 and the second pulley 32 are mounted on the first fixed seat 48 through the transmission shaft 33, and the central axis of the transmission shaft 33 is parallel to the central axis of the second swing shaft located therebelow; as shown in fig. 6, the first swing axle 28 passes through the axle slot 10 on the limiting seat 9 and is installed between the two reset rod mechanisms 15, and both ends of the first swing axle 28 are respectively matched with the upper ends of the two reset rod mechanisms 15; as shown in fig. 14 and 20, the first pulley 30 is mounted on the first swing shaft 28, and the first pulley 30 is connected to the second pulley 32 through a timing belt 31; the first belt pulley 30 is fixedly connected with the first swing shaft 28; a through shaft hole is arranged at the center of the side end surface of the limiting rotary block 29; the upper end surface and the lower end surface of the limiting rotary block 29 are semicircular surfaces; the limiting rotating block 29 is positioned in the limiting sliding groove 11 in the limiting seat 9, and the limiting rotating block 29 is nested on the first swing shaft 28; the limit rotating block 29 is fixedly connected with the first swing shaft 28; as shown in fig. 5, the first swing cover 26 is positioned above the second swing cover 44 in the transmission chute 5; as shown in fig. 13, the first swing cover 26 is fixedly connected to the first swing shaft 28 through two second connecting blocks 27, and the length direction of the first swing cover 26 is parallel to the central axis of the first swing shaft 28.

As shown in fig. 22, the reset rod mechanism 15 includes a telescopic column 16, a first reset spring 17, a second slider 18, a second telescopic sleeve 19, a second telescopic rod 20, a second reset spring 21, a first slider 22, and a movable circular groove 23, wherein as shown in fig. 6, the lower end of the telescopic column 16 is fixedly connected with the bottom surface of the T-shaped sliding groove 7; the second sliding block 18 is positioned in the T-shaped sliding groove 7, and the second sliding block 18 is arranged at the upper end of the telescopic column 16; the first return spring 17 is nested on the telescopic column 16, and two ends of the first return spring are respectively connected with the bottom surface of the T-shaped sliding groove 7 and the lower end surface of the second sliding block 18; the second telescopic sleeve 19 is positioned in the T-shaped sliding groove 7, and the lower end of the second telescopic sleeve is fixedly connected with the upper end face of the second sliding block 18; the second telescopic rod 20 is positioned in the T-shaped chute 7, and the lower end of the second telescopic rod is inserted into the second telescopic sleeve 19; as shown in fig. 21, a movable circular groove 23 is formed on one side end surface of the first slider 22; as shown in fig. 5 and 6, the first sliding block 22 is located in the T-shaped sliding chute, and the lower end surface thereof is fixedly connected with the upper end surface of the second telescopic rod 20; as shown in fig. 21, the movable circular grooves 23 in the first slider 22 in the two restoring rod mechanisms 15 are opposed; two first sliding blocks 22 in the two reset rod mechanisms 15 are fixedly connected with two ends of a first sliding cover plate 25 through first connecting blocks 24 respectively; two second sliding blocks 18 in the two reset rod mechanisms 15 are connected with two ends of a second sliding cover plate 46 through fourth connecting blocks 47; as shown in fig. 6, both ends of the first swing shaft 28 are respectively inserted into the movable circular slots 23 of the two first sliders 22; the first swing shaft 28 is in bearing fit with the two first sliding blocks 22.

As shown in fig. 14, the diameter of the first pulley 30 is equal to the diameter of the second pulley 32.

As shown in fig. 20, the diameter of the first bevel gear 34 is equal to the diameter of the second bevel gear 35, and the diameter of the third bevel gear 39 is larger than the diameter of the fourth bevel gear 41.

As shown in fig. 11, the central axis of the lower end of the axial groove 10 in the stopper base 9 coincides with the central axis of the rotary circular groove 12.

As shown in fig. 20, the arc radii of the arc surfaces at the upper and lower ends of the limiting rotation block 29 are equal, and the arc center axes of the two arc surfaces coincide with the central axis of the first swing shaft 28.

As shown in fig. 14, the arc radius of the arc surface at the upper and lower ends of the limiting rotation block 29 is equal to the inner circle radius of the rotation circular slot 12.

As shown in fig. 22, the first return spring 17 is a compression spring.

As shown in fig. 6, the second return spring 21 is a compression spring.

In the initial state of the present invention, the first swing cover 26 and the first sliding cover 25 are located on the same horizontal plane, and the second swing cover 44 and the second sliding cover 46 are located on the same horizontal plane.

The first transmission mechanism 13 and the second transmission mechanism 14 are designed to press the first swing cover plate 26 of the first transmission mechanism 13 and the second transmission mechanism 14 by hand when throwing garbage into the garbage bin, and the first swing cover plate 26 of the first transmission mechanism 13 and the second transmission mechanism 14 is to drive the corresponding first belt wheel 30 and the corresponding limit rotating block 29 to rotate around the central axis of the first swing shaft 28 through the corresponding second connecting block 27 and the corresponding first swing shaft 28; since the rotation of the limit rotating block 29 is limited by the limit sliding groove 11 at this time and cannot rotate, the first swing cover plates 26 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the first sliders 22 in the reset rod mechanisms 15 at both ends of the first swing shaft 28 to slide downwards along the corresponding T-shaped sliding grooves 7 through the corresponding second connecting block 27, the first swing shaft 28 and the limit rotating block 29 under the action of being pressed, the second telescopic rods 20 in the two reset rod mechanisms 15 contract downwards along the corresponding telescopic grooves in the second telescopic sleeve 19, and the second reset springs 21 in the reset rod mechanisms 15 are compressed; under the action of the second return springs 21, the second sliders 18 in the two return rod mechanisms 15 move downwards along the corresponding T-shaped sliding grooves 7 to press the corresponding first return springs 17, and the telescopic columns 16 in the first return springs 17 are shortened; the first sliding blocks 22 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the first sliding cover plate 25 connected with the first sliding blocks to slide downwards along the inner wall of the transmission groove 5 and the sliding hole 49 through the corresponding first connecting blocks 24; the limiting rotary blocks 29 in the first transmission mechanism 13 and the second transmission mechanism 14 slide downwards along the corresponding limiting sliding grooves 11; the second sliding blocks 18 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the second sliding cover plate 46 and the second swinging cover plate 44 to synchronously move downwards along the inner wall of the transmission groove 5 through corresponding fourth connecting blocks 47; the downward movement of the second sliding cover plate 46 and the second swinging cover plate 44 achieves downward preloading of the trash in the trash can before throwing the trash into the trash can, so that the trash in the trash can is more compact to accommodate more trash; because the first belt pulley 30 fixedly connected with the first swing shaft 28 does not rotate in the sliding down process of the limiting rotary block 29, and the fourth bevel gear 41 in indirect transmission relation with the first belt pulley 30 does not rotate, the second swing cover plate 44 cannot swing upwards around the central axis of the second swing shaft when garbage attacks; therefore, pre-compression of the garbage in the garbage can is better realized, and the space in the garbage can is increased to accommodate more garbage; when the sliding of the limiting rotary blocks 29 in the first transmission mechanism 13 and the second transmission mechanism 14 along the corresponding limiting sliding grooves 11 is finished and the limiting rotary blocks enter the rotary circular grooves 12 completely positioned at the lower ends of the limiting sliding grooves 11, the limiting of the limiting rotary blocks 29 by the limiting sliding grooves 11 is released, the first swing cover plates 26 in the first transmission mechanism 13 and the second transmission mechanism 14 are continuously pressed, and the first swing cover plates 26 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the first swing shafts 28 in the first transmission mechanism 13 and the second transmission mechanism 14 to rotate through the corresponding second connecting blocks 27; the first swing shafts 28 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the corresponding first belt wheels 30 and the limit rotary blocks 29 to synchronously rotate; since the diameter of the first belt pulley 30 is equal to that of the second belt pulley 32, the first belt pulley 30 in the first transmission mechanism 13 and the second transmission mechanism 14 drives the corresponding second belt pulley 32 and the corresponding first bevel gear 34 to synchronously rotate at a constant speed through the corresponding synchronous belt 31; since the diameter of the first bevel gear 34 is equal to that of the second bevel gear 35, the second bevel gear 35 drives the corresponding third bevel gear 39 to synchronously rotate at a constant speed through the second telescopic rod 20 and the second telescopic sleeve 19; the third bevel gear 39 drives the fourth bevel gear 41 engaged with the third bevel gear to rotate, and the rotation direction of the fourth bevel gear 41 is opposite to the rotation direction of the first pulley 30; since the diameter of the third bevel gear 39 is greater than that of the fourth bevel gear 41, the rotation speed of the fourth bevel gear 41 is greater than that of the third bevel gear 39, and further the rotation speed of the fourth bevel gear 41 is greater than that of the first pulley 30, the fourth bevel gear 41 in the first transmission mechanism 13 and the second transmission mechanism 14 drives the corresponding second swing cover 44 to swing upwards around the central axis of the second swing shaft through the corresponding second swing shaft and the third connecting block 43, and the swing speed of the second swing cover 44 in the first transmission mechanism 13 and the second transmission mechanism 14 is greater than that of the corresponding first swing cover 26; the swinging of the second swinging cover 44 does not interfere with the swinging of the first swinging cover 26, and the second swinging cover 44 does not obstruct the garbage falling from above; when the garbage falls into the containing barrel 1, the first swinging cover plate 26 in the first transmission mechanism 13 and the second transmission mechanism 14 is not pressed; swinging back under the action of the dead weight of the second swinging cover plate 44 in the first transmission mechanism 13 and the second transmission mechanism 14; the second swing cover plate 44 in the first transmission mechanism 13 and the second transmission mechanism 14 sequentially passes through the corresponding third connecting block 43, the second swing shaft, the fourth bevel gear 41, the third bevel gear 39, the second telescopic sleeve 19, the second telescopic rod 20, the second bevel gear 35, the first bevel gear 34, the second belt pulley 32, the transmission shaft 33, the first belt pulley 30, the first swing shaft 28 and the second connecting block 27 to drive the corresponding first swing cover plate 26 to swing back to the horizontal position; the first swing shaft 28 drives the limit rotating block 29 to swing back to a vertical state; under the action of the first return spring 17 and the second return spring 21, the first slider 22 and the second slider 18 in the first transmission mechanism 13 and the second transmission mechanism 14 slide upwards along the corresponding T-shaped sliding chute 7 to return to the initial position, and the second slider 18 drives the corresponding second sliding cover plate 46 and the corresponding second swinging cover plate 44 to move upwards to the initial position through the third connecting block 43 connected with the second slider 18; the first sliding block 22 drives the corresponding first sliding cover plate 25 and first swinging cover plate 26 to move upwards to the initial position through the first connecting block 24 connected with the first sliding block; driven by the first swing shaft 28, the limit rotating blocks 29 in the first transmission mechanism 13 and the second transmission mechanism 14 move upwards and enter the corresponding limit sliding grooves 11 and return to the initial positions; when children touch and fall the garbage bin, the rubbish in the garbage bin can not spill out, can not influence the health at home, and children can not be stained by rubbish yet to the children who play the garbage bin are healthy have been guaranteed.

In the invention, the central axis of the lower end of the shaft groove 10 on the limiting seat 9 is coincided with the central axis of the rotary circular groove 12, the arc radiuses of the arc surfaces at the upper and lower ends of the limiting rotary block 29 are equal, the arc central axes of the two arc surfaces are coincided with the central axis of the first swing shaft 28, and the arc radiuses of the arc surfaces at the upper and lower ends of the limiting rotary block are equal to the inner radius of the rotary circular groove 12, so that after the first transmission mechanism 13 and the second transmission mechanism 14 pre-compress garbage in the garbage can, the arc radiuses of the arc surfaces at the upper and lower ends of the limiting rotary block are equal to the inner radius of the rotary circular groove 12, and after the limiting rotary block 29 enters the rotary circular groove 12, the pre-compression of the garbage is finished and the second swing cover plate 44 stops continuing to move downwards; the first swing cover plate 26 in the first transmission mechanism 13 and the second transmission mechanism 14 is continuously pressed down, and as the central axis of the lower end of the shaft groove 10 on the limiting seat 9 is superposed with the central axis of the rotary circular groove 12, the arc radiuses of the arc surfaces at the upper end and the lower end of the limiting rotary block 29 are equal, and the arc central axes of the two arc surfaces are superposed with the central axis of the first swing shaft 28, the limiting rotary block 29 in the first transmission mechanism 13 and the second transmission mechanism 14 rotates around the central axis of the corresponding first swing shaft 28 in a seamless manner; in the process that the first swing cover plate 26 swings downwards around the central axis of the corresponding first swing shaft 28, the first swing shaft 28 drives the corresponding second swing cover plate 44 to swing upwards around the central axis of the corresponding second swing shaft through the corresponding first belt pulley 30, the synchronous belt 31, the second belt pulley 32, the first bevel gear 34, the second bevel gear 35, the third bevel gear 39, the fourth bevel gear 41, the second swing shaft and the third connecting block 43, so that the falling garbage is not blocked.

The working process of the invention is as follows: when throwing garbage into the garbage can, pressing down the first swing cover plate 26 in the first transmission mechanism 13 and the second transmission mechanism 14 by hand, and driving the corresponding first belt wheel 30 and the limit rotating block 29 to rotate around the central axis of the first swing shaft 28 through the corresponding second connecting block 27 and the first swing shaft 28 by the first swing cover plate 26 in the first transmission mechanism 13 and the second transmission mechanism 14; since the rotation of the limit rotating block 29 is limited by the limit sliding groove 11 at this time and cannot rotate, the first swing cover plates 26 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the first sliders 22 in the reset rod mechanisms 15 at both ends of the first swing shaft 28 to slide downwards along the corresponding T-shaped sliding grooves 7 through the corresponding second connecting block 27, the first swing shaft 28 and the limit rotating block 29 under the action of being pressed, the second telescopic rods 20 in the two reset rod mechanisms 15 contract downwards along the corresponding telescopic grooves in the second telescopic sleeve 19, and the second reset springs 21 in the reset rod mechanisms 15 are compressed; under the action of the second return springs 21, the second sliders 18 in the two return rod mechanisms 15 move downwards along the corresponding T-shaped sliding grooves 7 to press the corresponding first return springs 17, and the telescopic columns 16 in the first return springs 17 are shortened; the first sliding blocks 22 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the first sliding cover plate 25 connected with the first sliding blocks to slide downwards along the inner wall of the transmission groove 5 and the sliding hole 49 through the corresponding first connecting blocks 24; the limiting rotary blocks 29 in the first transmission mechanism 13 and the second transmission mechanism 14 slide downwards along the corresponding limiting sliding grooves 11; the second sliding blocks 18 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the second sliding cover plate 46 and the second swinging cover plate 44 to synchronously move downwards along the inner wall of the transmission groove 5 through corresponding fourth connecting blocks 47; the downward movement of the second sliding cover plate 46 and the second swinging cover plate 44 allows the garbage in the garbage can to be pre-pressed downward before throwing the garbage into the garbage can, so that the garbage in the garbage can is more compact to accommodate more garbage.

When the sliding of the limiting rotary blocks 29 in the first transmission mechanism 13 and the second transmission mechanism 14 along the corresponding limiting sliding grooves 11 is finished and the limiting rotary blocks enter the rotary circular grooves 12 completely positioned at the lower ends of the limiting sliding grooves 11, the limiting of the limiting rotary blocks 29 by the limiting sliding grooves 11 is released, the first swing cover plates 26 in the first transmission mechanism 13 and the second transmission mechanism 14 are continuously pressed, and the first swing cover plates 26 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the first swing shafts 28 in the first transmission mechanism 13 and the second transmission mechanism 14 to rotate through the corresponding second connecting blocks 27; the first swing shafts 28 in the first transmission mechanism 13 and the second transmission mechanism 14 drive the corresponding first belt wheels 30 and the limit rotary blocks 29 to synchronously rotate; since the diameter of the first belt pulley 30 is equal to that of the second belt pulley 32, the first belt pulley 30 in the first transmission mechanism 13 and the second transmission mechanism 14 drives the corresponding second belt pulley 32 and the corresponding first bevel gear 34 to synchronously rotate at a constant speed through the corresponding synchronous belt 31; since the diameter of the first bevel gear 34 is equal to that of the second bevel gear 35, the second bevel gear 35 drives the corresponding third bevel gear 39 to synchronously rotate at a constant speed through the second telescopic rod 20 and the second telescopic sleeve 19; the third bevel gear 39 drives the fourth bevel gear 41 engaged with the third bevel gear to rotate, and the rotation direction of the fourth bevel gear 41 is opposite to the rotation direction of the first pulley 30; since the diameter of the third bevel gear 39 is greater than that of the fourth bevel gear 41, the rotation speed of the fourth bevel gear 41 is greater than that of the third bevel gear 39, and further the rotation speed of the fourth bevel gear 41 is greater than that of the first pulley 30, the fourth bevel gear 41 in the first transmission mechanism 13 and the second transmission mechanism 14 drives the corresponding second swing cover 44 to swing upwards around the central axis of the second swing shaft through the corresponding second swing shaft and the third connecting block 43, and the swing speed of the second swing cover 44 in the first transmission mechanism 13 and the second transmission mechanism 14 is greater than that of the corresponding first swing cover 26; the swinging of the second swing cover 44 does not interfere with the swinging of the first swing cover 26, and the second swing cover 44 does not obstruct the garbage falling from above.

When the garbage falls into the containing barrel 1, the first swinging cover plate 26 in the first transmission mechanism 13 and the second transmission mechanism 14 is not pressed; swinging back under the action of the dead weight of the second swinging cover plate 44 in the first transmission mechanism 13 and the second transmission mechanism 14; the second swing cover plate 44 in the first transmission mechanism 13 and the second transmission mechanism 14 sequentially passes through the corresponding third connecting block 43, the second swing shaft, the fourth bevel gear 41, the third bevel gear 39, the second telescopic sleeve 19, the second telescopic rod 20, the second bevel gear 35, the first bevel gear 34, the second belt pulley 32, the transmission shaft 33, the first belt pulley 30, the first swing shaft 28 and the second connecting block 27 to drive the corresponding first swing cover plate 26 to swing back to the horizontal position; the first swing shaft 28 drives the limit rotating block 29 to swing back to a vertical state; under the action of the first return spring 17 and the second return spring 21, the first slider 22 and the second slider 18 in the first transmission mechanism 13 and the second transmission mechanism 14 slide upwards along the corresponding T-shaped sliding chute 7 to return to the initial position, and the second slider 18 drives the corresponding second sliding cover plate 46 and the corresponding second swinging cover plate 44 to move upwards to the initial position through the third connecting block 43 connected with the second slider 18; the first sliding block 22 drives the corresponding first sliding cover plate 25 and first swinging cover plate 26 to move upwards to the initial position through the first connecting block 24 connected with the first sliding block; driven by the first swing shaft 28, the limit rotating blocks 29 in the first transmission mechanism 13 and the second transmission mechanism 14 move upwards and enter the corresponding limit sliding grooves 11 and return to the initial positions; when children touch and fall the garbage bin, the rubbish in the garbage bin can not spill out, can not influence the health at home, and children can not be stained by rubbish yet to the children who play the garbage bin are healthy have been guaranteed.

In conclusion, the invention has the beneficial effects that: the first transmission mechanism 13 and the second transmission mechanism 14 of the garbage can are provided with a second swing cover plate 44, so that the garbage can is pre-compacted before falling into the garbage can, and the space in the garbage can is increased to contain more garbage; after the first transmission mechanism 13 and the second transmission mechanism 14 compact the garbage in the garbage can, the second swing cover plates 44 in the first transmission mechanism 13 and the second transmission mechanism 14 swing upwards around the corresponding second swing shafts, and the garbage falls into the garbage can without being blocked; after rubbish falls into the garbage bin, no longer press first swing apron 26, first swing apron 26 and the automatic back swing of second swing apron 44 in first drive mechanism 13 and the second drive mechanism 14 are to initial position to the entry 6 of self-closing garbage bin prevents that children from touching and falling down garbage bin back rubbish and can not spill out and make dirty children, guarantees that children's health and the health at home are not influenced.

Claims

1. A garbage can capable of preventing children from opening by mistake comprises a containing can, a return groove and a can cover mechanism, wherein the return groove is formed in the upper end of the containing can along the periphery of a can opening; the barrel cover mechanism is arranged at the upper end of the accommodating barrel, and the lower end of the barrel cover mechanism is embedded into the return groove; the method is characterized in that:

the barrel cover mechanism comprises a barrel cover, a transmission groove, an inlet, a T-shaped sliding groove, a cover plate sliding groove, a limiting seat, a shaft groove, a limiting sliding groove, a rotary circular groove, a first transmission mechanism and a second transmission mechanism, wherein the barrel cover is internally provided with the transmission groove which is communicated with the lower end surface of the barrel cover; an inlet is formed in the center of the upper end face of the barrel cover and is vertically communicated with the transmission groove; two T-shaped sliding grooves are formed in two opposite side walls of the transmission groove respectively in the vertical direction, and the two T-shaped sliding grooves in each side wall are symmetrical with respect to the central plane of the barrel cover; a cover plate sliding groove tangent to the adjacent side wall is formed at the lower end of each T-shaped sliding groove close to the adjacent side wall, and the cover plate sliding groove is transversely communicated with the corresponding T-shaped sliding groove; a through shaft groove is formed between two opposite side end faces on the limiting seat, and the inner wall of the lower end of the shaft groove is a semi-circular arc face; the inner wall of the upper end of the shaft groove is provided with a limiting sliding groove; a rotary circular groove is formed in the inner wall of the lower end of the shaft groove and is communicated with the limiting sliding groove up and down; the two limiting seats are arranged on two sides of an inlet on the upper end surface of the transmission groove, and are symmetrical about the central plane of the inlet; the first transmission mechanism and the second transmission mechanism are arranged in the transmission groove and are respectively positioned at two sides of the inlet; the first transmission mechanism and the second transmission mechanism are respectively matched with the two limiting seats; the first transmission mechanism is matched with two T-shaped sliding grooves and two cover plate sliding grooves which are arranged on two opposite side walls in the transmission groove and are positioned on the same side of the inlet; the second transmission mechanism is matched with two T-shaped sliding grooves and two cover plate sliding grooves which are arranged on two opposite side walls in the transmission groove and are positioned on the other side of the inlet;

the inner structures of the first transmission mechanism and the second transmission mechanism are completely the same, and are symmetrical about the central plane of the barrel cover; for a first transmission mechanism, the first transmission mechanism comprises a reset rod mechanism, a first connecting block, a first sliding cover plate, a first swinging cover plate, a second connecting block, a first swinging shaft, a limiting rotating block, a first belt wheel, a synchronous belt, a second belt wheel, a transmission shaft, a first bevel gear, a second fixed seat, a first telescopic rod, a first telescopic sleeve, a third bevel gear, a third fixed seat, a fourth bevel gear, a second swinging shaft, a third connecting block, a second swinging cover plate, a support lug, a second sliding cover plate, a fourth connecting block, a first fixed seat and a sliding hole, wherein the two reset rod mechanisms are respectively arranged on two opposite side walls in the transmission groove and in two T-shaped sliding grooves which are positioned on the same side of an inlet; two support lugs are symmetrically arranged on the upper end surface of the second sliding cover plate along the length direction of the second sliding cover plate; a through shaft hole is formed between the upper end surface and the lower end surface of the horizontal part of the third fixed seat; the third fixed seat is arranged on the upper end face of one end of the second sliding cover plate and is positioned outside the support lug; the two ends of the second sliding cover plates are respectively in sliding fit with the two cover plate sliding grooves at the two reset rod mechanisms and are arranged in the transmission grooves, and the two ends of the two second sliding cover plates are respectively connected with the lower ends of the two reset rod mechanisms through fourth connecting blocks; the two fourth connecting blocks are respectively positioned in the two cover plate sliding grooves; two third connecting blocks are symmetrically arranged at the edge of the upper end surface of the second swing cover plate along the length direction of the second swing cover plate; the two third connecting blocks are hinged with the two support lugs on the second sliding cover plate through a second swing shaft; the second swing shaft is fixedly connected with the third connecting block; the second swing shaft is matched with the support lug through a bearing; a fourth bevel gear is arranged at one end of the second swing shaft, which is positioned at the third fixed seat; a through sliding hole is formed between the upper end surface and the lower end surface of the first sliding cover plate, and the sliding hole is positioned in the center of the edge of the first sliding cover plate in the length direction; the first sliding cover plate is positioned above the second sliding cover plate, and the limiting seat positioned above the first sliding cover plate penetrates through the sliding hole in the first sliding cover plate from top to bottom;

two ends of the first sliding cover plate are fixedly connected with the upper ends of the two reset rod mechanisms through first connecting blocks respectively; a through shaft hole is formed between the upper end surface and the lower end surface of the upper horizontal part of the second fixed seat; the second fixed seat is arranged on the lower end face of the first sliding cover plate and is positioned right above the third fixed seat; the first telescopic rod is arranged on the second fixed seat in a matching way through the bearing of the shaft hole on the outer circular surface of the first telescopic rod and the second fixed seat; the second bevel gear is arranged at the upper end of the telescopic rod; the first telescopic sleeve is matched with a bearing of a shaft hole on the third fixed seat through the outer circular surface of the first telescopic sleeve; the third bevel gear is arranged at the lower end of the first telescopic sleeve and meshed with the fourth bevel gear; the upper end of the first telescopic sleeve is nested at the lower end of the first telescopic rod in a matching way of the guide block and the guide groove; the first fixed seat is arranged on the lower end face of the first sliding cover plate and is positioned near the second fixed seat; the first bevel gear and the second belt wheel are mounted on the first fixed seat through a transmission shaft, and the central axis of the transmission shaft is parallel to the central axis of the second swing shaft below the transmission shaft; the first swing shaft penetrates through a shaft groove on the limiting seat and is arranged between the two reset rod mechanisms, and two ends of the first swing shaft are respectively matched with the upper ends of the two reset rod mechanisms; the first belt wheel is arranged on the first swing shaft and is connected with the second belt wheel through a synchronous belt; the first belt wheel is fixedly connected with the first swing shaft; the center of the side end surface of the limiting rotating block is provided with a through shaft hole; the upper end surface and the lower end surface of the limiting rotating block are semicircular surfaces; the limiting rotating block is positioned in a limiting sliding groove in the limiting seat and is embedded on the first swing shaft; the limiting rotating block is fixedly connected with the first swing shaft; the first swing cover plate is positioned above the second swing cover plate in the transmission groove; the first swing cover plate is fixedly connected with the first swing shaft through two second connecting blocks, and the length direction of the first swing cover plate is parallel to the central axis of the first swing shaft;

2. The child-resistant trash can of claim 1, wherein: the diameter of the first belt wheel is equal to the diameter of the second belt wheel.

3. The child-resistant trash can of claim 1, wherein: the diameter of the first bevel gear is equal to that of the second bevel gear, and the diameter of the third bevel gear is larger than that of the fourth bevel gear.

4. The child-resistant trash can of claim 1, wherein: the central axis of the lower end of the shaft groove on the limiting seat is superposed with the central axis of the rotary circular groove.

5. The child-resistant trash can of claim 1, wherein: the arc radiuses of the arc surfaces at the upper end and the lower end of the limiting rotating block are equal, and the arc center axes of the two arc surfaces are overlapped with the central axis of the first swing shaft.

6. A child-resistant trashcan as claimed in claim 4 or 5, wherein: the arc radius of the cambered surfaces at the upper end and the lower end of the limiting rotating block is equal to the inner circle radius of the rotating circular groove.

7. The child-resistant trash can of claim 1, wherein: the first return spring is a compression spring.

8. The child-resistant trash can of claim 1, wherein: the second return spring is a compression spring.