CN111942770B

CN111942770B - Garbage can

Info

Publication number: CN111942770B
Application number: CN201910697982.7A
Authority: CN
Inventors: 吕益美
Original assignee: Yongkang Qingwei Industry And Trade Co ltd
Current assignee: Yongkang Qingwei Industry And Trade Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2022-07-01
Anticipated expiration: 2039-07-30
Also published as: CN111942770A

Abstract

The invention discloses a garbage can which comprises an outer can and an inner can, wherein the inner can is arranged in the outer can; the bag opening clamp is arranged on the upper part of the inner barrel; the bag opening clamp comprises two clamp bodies which are connected in a rotating way; each clamp body is connected with an adhesive tape capable of adhering a garbage bag; a connecting rod assembly for driving the bag opening clamp to close or open is arranged on the outer side of the inner barrel or the inner side of the outer barrel, and a driving tension spring is connected between the connecting rod assembly and the pedal bracket; a locking piece for blocking the driving tension spring from driving the connecting rod assembly to move is arranged on the outer side of the inner barrel; a bag box is detachably mounted in a space between the inner barrel and the outer barrel, a plurality of garbage bags which are sequentially connected through a point broken line are mounted in the bag box, and each garbage bag is provided with an unlocking part used for driving a locking part to unlock, so that the two clamps can be changed from an open state to a clamping state. The opening and closing of the dustbin cover and the automatic bag sleeving can be controlled by one pedal.

Description

Garbage can

Technical Field

The invention belongs to the field of household daily necessities, and particularly relates to a garbage can capable of automatically opening the opening of a garbage bag.

Background

Chinese patent No. CN103832743B discloses a portable bag-in-bag garbage can and a use method thereof, which belongs to the technical field of mechanical product design, and particularly relates to a portable bag-in-bag garbage can widely applied to public places, outdoors or at home. The garbage can bagging device is characterized in that a garbage can bagging process is achieved conveniently through a connecting rod combination mechanism, a spring contact block mechanism, a gear rack and other mechanisms, and a series of problems that a garbage can is unsanitary in bag taking, troublesome in bag tearing, difficult in bagging and the like in the bagging process are solved. Compared with the existing automatic bagging garbage can, the automatic bagging garbage can has the advantages that the used mechanism is simpler and more ingenious, the space utilization rate is high, the bagging process is more convenient and faster, the success rate of bagging is high, and the automatic bagging garbage can is widely suitable for being used in public places, outdoors or at home.

In the scheme of the above patent, the two functions of opening the cover and sleeving the bag are respectively driven by the cover opening pedal and the bag sleeving pedal, which causes two defects: 1. when a user uses the garbage can, the pedal needs to be distinguished, if the bag sleeving pedal is mistakenly stepped when the can cover needs to be opened, if more garbage exists in the garbage can, the garbage bag filled with the garbage is easily torn when the left upper clamp and the right upper clamp rotate, and even the garbage can part is damaged; 2. when trampling the cover bag footboard, the user need oneself confirm that the next sack just can clip the sack part when reaching the clip position and realize automatic cover bag, and is higher to user's requirement when actual operation like this, and user experience is relatively poor.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the defects existing in the prior art, the garbage can which can realize the functions of uncovering and automatic bagging and is simple and convenient to operate when bagging is carried out is provided.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: a trash can, comprising: an outer tub; an inner tub fixedly or detachably installed in the outer tub; the barrel cover is rotatably arranged on one side of the upper end of the inner barrel or the outer barrel, an uncovering support rod is rotatably connected to the position, close to the rotating shaft, of the barrel cover, and the uncovering support rod drives the barrel cover to rotate upwards when moving upwards; the pedal is positioned on the front side of the outer barrel and close to the bottom, the pedal is connected with a pedal bracket, the pedal bracket is rotationally connected with the outer barrel or the inner barrel, and one end of the pedal bracket, which is far away from the pedal, is connected with the uncovering support rod; the bag opening clamp is arranged on the upper part of the inner barrel or the outer barrel; the bag opening clamp comprises two clamp bodies which are mutually rotatably connected; each clamp body is connected with an adhesive tape capable of adhering the garbage bag, so that when the two clamp bodies are closed, clamp the garbage bag and then are opened, the opening of the garbage bag can be opened; a connecting rod assembly for driving the bag opening clamp to close or open is arranged on the outer side of the inner barrel or the inner side of the outer barrel, and a driving tension spring is connected between the connecting rod assembly and the pedal or the pedal bracket; a locking piece for blocking the driving tension spring from driving the connecting rod assembly to move is arranged on the outer side of the inner barrel or the inner side of the outer barrel; a first bag box or a second bag box is selectively arranged in the space between the inner barrel and the outer barrel;

1) the first bag box comprises a box body and a plurality of garbage bags which are arranged in the box body and are sequentially connected through a dotted line and a broken line, and each garbage bag is provided with an unlocking part used for driving a locking part to unlock, so that the two clamps can be changed into a clamping state from an opening state; the unlocking part is a hole-shaped part or a protruding part arranged on the garbage bag, and the hole-shaped part or the protruding part drives the locking piece to unlock when sliding through the locking piece;

2) the second bag box comprises a box body and a plurality of garbage bags which are arranged in the box body and are sequentially connected through a dotted line and a broken line, and each garbage bag is provided with an unlocking part used for driving a locking part to unlock, so that the two clamps can be changed into a clamping state from an opening state; an unlocking deflector rod capable of driving the locking piece to unlock in the rotating process is rotatably mounted at the bottom in the box body, and the unlocking deflector rod pushes the locking piece to unlock once when rotating for one circle; a rubber roller is rotatably arranged at the lower part in the box body, and one outer wall surface of the garbage bag is in transmission connection with the outer wall of the rubber roller through friction force; the rubber roll is in transmission connection with the unlocking deflector rod through a reduction gear set, and when the distance of the movement of the garbage bags is just equal to the length of one garbage bag, the unlocking deflector rod rotates just one circle; the outer wall surface of the garbage bag in contact with the rubber roller forms the unlocking part.

Preferably, the method comprises the following steps: a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, a plurality of through holes are arranged on the garbage bag, below the welding line, along the width direction, the through holes form the point broken line, and at least one through hole is simultaneously used as the unlocking part; or a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, and the point breaking line is positioned below the welding line; a plurality of unlocking holes are formed in the garbage bag within the range of the welding line along the width direction, and at least one unlocking hole is used as the unlocking part; or a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, and the point breaking line is positioned below the welding line; a handle hole is formed in the position, close to the bag opening, of the garbage bag, and the handle hole is used as the unlocking part at the same time;

be equipped with on the locking piece with the driven arch of through-hole cooperation joint for when the disposal bag was dragged, the through-hole on the disposal bag can drive the unblock of locking piece.

Preferably, the method comprises the following steps: a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, a protruding unlocking part is formed on one surface of the garbage bag through the welding line, and the point breaking line is located below the welding line; be equipped with on the locking piece with the driven step portion of unblock portion cooperation joint for when the disposal bag was dragged, the unblock portion on the disposal bag can drive the unblock of locking piece.

Preferably, the method comprises the following steps: each garbage bag is provided with two transverse surfaces which can be matched and bonded with the adhesive tapes on the two clamping bodies respectively, and two longitudinal parts connected between the two transverse surfaces; the longitudinal portion includes at least one fold in a V-shape.

Preferably, the method comprises the following steps: a lock catch bracket is arranged on one outer wall of the inner barrel, and the locking piece is rotatably arranged on the lock catch bracket; the first bag box is positioned above the lock catch bracket, the bottom of the first bag box is provided with a locking piece extending port for the upper end of the locking piece to extend into, two guide rods are arranged at the bottom of the first bag box and positioned at two sides of the locking piece extending port, the two guide rods comprise a first guide rod close to the outer barrel and a second guide rod close to the inner barrel, and the lower end of the first guide rod is lower than the upper end of the locking piece; the garbage bag penetrates through the lower ends of the two guide rods, so that when the garbage bag is dragged, the upper end of the locking piece is in sliding contact with the part, located between the two guide rods, of the garbage bag.

Preferably, the method comprises the following steps: each clamp body is U-shaped, and the two clamp bodies comprise a first clamp body and a second clamp body, wherein the two ends of the first clamp body are respectively connected with the inner barrel in a rotating mode, and the second clamp body is connected with the connecting rod assembly; the connecting rod assembly comprises a driving rod which is integrally U-shaped and two symmetrically arranged connecting rods, and the driving rod and the connecting rods are respectively in rotating connection with the outer wall of the inner barrel; the upper ends of the two connecting rods are respectively connected with two ends of the second clamp body in a rotating mode, and the other ends of the two connecting rods are respectively connected with two ends of the driving rod in a relatively rotating mode and in a sliding mode; the driving tension spring is arranged between the driving rod and the pedal bracket; the locking mechanism is characterized in that a locking rod is arranged in the middle of the driving rod, a lock catch matched and clamped with the locking rod is arranged on the locking piece, and when the lock catch is disengaged from the locking rod, the driving tension spring can drive the driving rod to rotate.

Preferably, the method comprises the following steps: the lower end of the uncovering support rod is connected with a limiting sliding sleeve, and the limiting sliding sleeve is connected with one end, far away from the pedal, of the pedal bracket in a sliding manner; when the pedal moves downwards to the limit position, the barrel cover rotates upwards for more than 90 degrees, and no interaction force exists between the pedal bracket and the limiting sliding sleeve in the vertical direction after the pedal is reset; when the pedal moves downwards and the barrel cover rotates upwards to be smaller than 90 degrees, the barrel cover can reset under the action of self gravity and the gravity of the cover opening support rod.

Preferably, the method comprises the following steps: the upper part of the inner barrel is provided with a box loading opening for loading a first bag box, and two sides of the upper end of the first bag box are provided with buckles which are matched and clamped with the lower end of the box loading opening.

Preferably, the method comprises the following steps: the box body comprises an outer box with an opening on the side surface and an inner box with an opening at the upper end, and a plurality of garbage bags connected through a point broken line are arranged in the inner box and stacked along the height direction of the inner box; a bag channel for garbage bags to pass through from top to bottom is formed between the outer wall of one side of the inner box close to the first guide rod and the inner wall of the outer box at the adjacent position.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the cover opening of the barrel cover and the automatic bag sleeving of the bag opening clamp are simultaneously controlled by one pedal, and the action of the bag opening clamp needs to be triggered by the garbage bag when the bag is sleeved, so that the condition of treading the pedal by mistake is avoided. Further, through set up the unblock portion on every disposal bag, just arrive when opening the bag and press from both sides the position at the sack of pulling disposal bag to (next disposal bag), the unblock portion makes the locking piece unblock of locking bag clamp, as long as keep trampling the footboard when the user needs to change the disposal bag like this, then upwards pull the disposal bag, treat that the pulling distance is exactly when the length of a disposal bag, unblock portion on the disposal bag can automatic trigger the sack position of opening the sack clamp of bag clamp and holding next disposal bag, after loosening the footboard, it opens the sack that the bag clamp resets and can drive the disposal bag and open, thereby realize automatic bagging, that is to say, do not need user oneself to go the position of judging the disposal bag mouth and the opportunity of trampling the footboard, it is comparatively convenient to operate, better user experience has. In addition, the garbage can be provided with the bag boxes with different structural principles, so that different bag boxes can be selected conveniently according to needs without replacing the garbage can.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic exploded view of the present invention.

Fig. 3 is a schematic view showing that the lid is opened by stepping on the pedal (which is not ignored to the limit position) when throwing garbage into the garbage can.

Fig. 4 is a schematic diagram of key states in the automatic bagging process of the present invention.

Fig. 5 is a schematic view of the coupling structure of the pedal bracket and the portion of the open cover stay.

FIG. 6 is a schematic view of the assembled structure of the pedal bracket, linkage assembly and latch portion.

FIG. 7 is a schematic view of one configuration of the locking member.

Fig. 8 is a schematic view showing an assembling structure of the locking member and the first bag box.

Fig. 9 is a schematic structural view of the first pouch box.

Fig. 10 is a schematic sectional structure view of the first pouch box.

FIG. 11 is a schematic view of an outer box structure of the first pouch box.

Fig. 12 is a schematic view of the inner case structure of the first pouch case.

Fig. 13 is a schematic view of a folded configuration of the trash bag.

Fig. 14 is a schematic view of another folding configuration of the trash bag.

Fig. 15 is a schematic view of another folding configuration of the trash bag.

Fig. 16 is a schematic view showing a structure of a spot broken line of a garbage bag as an unlocking part.

FIG. 17 is a schematic view of a garbage bag with an unlocking hole as an unlocking part in a welding line.

FIG. 18 is a schematic view of the handle hole of the garbage bag as an unlocking part.

Fig. 19 is another configuration of a handle hole in a trash bag and also as an unlocking portion.

FIG. 20 is a schematic view of an unlocking part for forming a protrusion on one side of the weld line of the garbage bag.

Fig. 21 is a schematic view of a locking member for use with the trash bag of fig. 20.

Fig. 22 is a schematic view of another mounting structure of the first or second bag box.

Fig. 23 is a schematic structural view of the second pouch box.

Fig. 24 is a schematic sectional view showing the second pouch case of fig. 23.

Description of reference numerals: 1. an outer tub; 10. a base; 2. an inner barrel; 21. a pedal support; 22. a latch bracket; 23. perforating the bag; 24. a clip accommodating groove; 25. perforating the clamp; 26. a box loading port; 3. a pedal; 30. a pedal bracket; 4. a barrel cover; 40. a gland; 41. uncovering the support rod; 42. a limiting sliding sleeve; 43. clamping a head; 44. a limit stop block; 5. opening a bag clamp; 51. a rubber strip seat; 52. an adhesive tape; 53. a connecting rod; 54. a return tension spring; 55. a drive rod; 551. a locking lever; 56. driving the tension spring; 6a, a first bag box; 6b, a second bag box; 60. a refuse bag; 61. an outer box; 611. a first guide bar; 612. a second guide bar; 613. a handle aperture; 614. buckling; 615. inner box positioning ribs; 616. a locking member extension port; 617. a third guide bar; 62. an inner case; 621. an inner extension wall; 63. a bag channel; 64. bag outlet; 65. a side cover; 66. a rubber roller; 661. a first guide roller; 662. a second guide roller; 67. a reduction gear set; 68. unlocking the deflector rod; 681. a shifting sheet; 601. a transverse plane; 602. a longitudinal portion; 603a, a first weld line; 603b and a second welding line; 604a, first broken line; 604b, second point disconnection; 605. unlocking the hole; 606. a handle aperture; 7. a locking member; 70. a torsion spring; 71. a driven protrusion; 71b, a driven step part; 72. locking; 721. the sliding slope is reset.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should also be understood that the terms "mounted," "disposed," "provided," "connected," and "nested" are to be construed broadly and may, for example, be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. The terms "upper", "lower", "top", "bottom", "front", "back", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and do not require that the present invention must be constructed and operated in a particular orientation and should not be construed as limiting the present invention.

The front side and the rear side are, unless otherwise specified, the side where the tub cover 4 is connected to the inner tub 2 is the rear side, and the front side is the side where the pedal is located.

Example 1

Referring to fig. 1 to 12, the trash can of the present embodiment includes: an outer tub 1 and an inner tub 2, the inner tub 2 being fixedly or detachably installed in the outer tub 1. The garbage can further comprises a can cover 4, the can cover 4 is rotatably arranged on the rear side of the upper end of the inner barrel 2, an uncovering support rod 41 is rotatably connected to the position, close to the rotating shaft, of the can cover 4, and a support rod seat rotatably connected with the uncovering support rod 41 is arranged on the inner side of the can cover 4; the lid opening lever 41 moves upward to drive the lid 4 to rotate upward. Further, a limiting part for limiting the rotation range of the barrel cover 4 may be disposed at a connection position of the inner barrel 2 and the barrel cover 4, for example, the rotation range of the barrel cover 4 is limited to 0-120 degrees (0 degree is the horizontal state of the barrel cover 4 when closed).

In order to make the opening action of the dustbin cover 4 softer, the opening and closing processes are performed without clamping hands, and a buffering/damping structure can be additionally arranged. Referring to fig. 5, a one-way damper 46 is installed on the outer wall of the inner tub 2 near the lid-opening stay 41, and a damping link connected to the movable end of the one-way damper 46 is provided on the sidewall of the lid-opening stay 41. The one-way damper 46 enables the drum cover 4 to slowly rotate in the process of changing from the open state to the closed state, so that the drum cover is prevented from impacting the upper end of the outer drum 1 to generate noise and even damaging the drum cover 4 or other components connected with the drum cover 4. In other embodiments, a torsion/spring or a reduction gear set may be provided at the pivot connection position of the lid 4 and the trash can, or some common damping hinge structures may include a concave cam, a rubber gasket, a damper, etc.

The garbage can further comprises a pedal 3, the pedal 3 is located on the front side of the outer barrel 1 and close to the bottom, the pedal 3 is connected with a pedal support 30, the whole pedal support 30 shown in fig. 2 is of a rectangular frame structure, and the positions, close to the middle, of the two sides of the pedal support 30 are rotatably connected with the inner barrel 2. Specifically, pedal supports 21 are arranged on two sides of the bottom of the inner barrel 2, a rotating rod is connected to the position, corresponding to the pedal supports 21, of the pedal support 30, and the pedal support 30 is rotatably connected with the pedal supports 21 through the rotating rod.

In other embodiments, the pedal support 21 may be further installed on the inner wall of the outer tub 1, and may be in the form of a hook to support the tilting of the pedal support 30. The specific installation position of the pedal support 21 can further select the specific form of adopting a labor-saving lever or a labor-saving lever by adjusting the force of generally treading the pedal 3, the uncovering height of the barrel cover 4, the action amplitude of other linkage structures and the like.

As shown in fig. 3 to 5, the end of the pedal bracket 30 away from the pedal 3 is connected to a door opening stay 41. Preferably, the lower end of the lid opening support rod 41 is connected with an elongated limit sliding sleeve 42, and the limit sliding sleeve 42 is slidably connected with one end of the pedal bracket 30 far away from the pedal 3. When the pedal 3 moves downwards to the limit position, the barrel cover 4 rotates upwards for more than 90 degrees, and after the pedal 3 is reset, no interaction force exists between the pedal bracket 30 and the limiting sliding sleeve 42 in the vertical direction. Under this kind of state, bung 4 rotates and exceeds 90 degrees, and the gravity of bung 4 self makes bung 4 can not automatic re-setting, and pedal support 30 after resetting does not produce pressure to spacing sliding sleeve 42 in addition, also can not make bung 4 reset, that is to say that bung 4 under this kind of state can only manually turn and reset, and this has just made things convenient for the action of opening bag clamp 5, avoids bung 4 to opening bag clamp 5 and produces the interference.

The uncovering support rod 41 is provided with a clamping head 43, a limit stop 44 is arranged on the outer wall of the inner barrel 2 or the inner wall of the outer barrel 1 corresponding to the clamping head 43, when the rotation of the barrel cover 4 is less than 90 degrees, the clamping head 43 is positioned below the limit stop, and when the clamping head 43 passes over the limit stop, the rotation of the barrel cover 4 exceeds 90 degrees. That is to say, the draw-in gear 43 cooperates with the limiting stopper 44, when the pedal is stepped on, the draw-in gear 43 does not continue to be stepped on downwards when the resistance is sensed, that is, when the draw-in gear 43 is in a state of abutting against the lower end of the limiting stopper, the rotation of the barrel cover 4 is less than 90 degrees, which is convenient for the automatic resetting of the barrel cover 4 after the garbage is thrown in, when the garbage bag needs to be replaced, the barrel cover 4 needs to be rotated to exceed 90 degrees to avoid the automatic resetting, when the pedal is stepped on, the draw-in gear continues to be stepped on downwards when the resistance is sensed, the cover opening support rod 41 generates certain deformation to enable the draw-in gear 43 to cross the limiting stopper, that is, the rotation of the barrel cover 4 exceeds 90 degrees. In addition, the matching of the clamping head 43 and the limiting stop block also ensures that the vibration in the action process of the bag opening clamp 5 does not cause the accidental resetting of the barrel cover 4 to interfere the normal work of the bag opening clamp 5.

As shown in fig. 3, when the pedal moves downward and the tub cover 4 rotates upward by less than 90 degrees, the tub cover 4 can be reset under the action of its own weight and the weight of the open-cover stay 41. That is, when throwing garbage into the garbage bin, the pedal is not stepped to the bottom, so that the bin cover 4 does not rotate more than 90 degrees, and the bin cover 4 can automatically reset after the garbage is thrown and the pedal is released.

In other embodiments, the above effect may not be pursued, and the rotation range of the barrel cover 4 is limited only by the limiting part arranged at the connection position of the inner barrel 2 and the barrel cover 4, for example, a cam-shaped limiting protrusion is adopted, and after the barrel cover 4 goes over 90 degrees, the limiting part has a gradually abutting effect on the position of the barrel cover 4, so that the barrel cover 4 slowly falls down.

The garbage can further comprises a bag opening clamp 5, and the bag opening clamp 5 is mounted at the upper part of the inner barrel 2. The bag opening clamp 5 comprises two clamp bodies which are in a scissors shape and are connected in a rotating mode. Each clamp body is connected with an adhesive tape 52 which can be adhered to the garbage bag 60, so that when the two clamp bodies are closed, clamp the garbage bag 60 and then are opened, the edges of the bag openings of the garbage bags are adsorbed respectively, and the bag opening of the garbage bag 60 is opened.

Further, in order to enable the bag opening clamp 5 to bring the opening of the garbage bag 60 to an open state through the adhesive tape 52, the garbage bag 60 needs to be adapted to the bag opening clamp 5. Specifically, as shown in fig. 13, each of the garbage bags has two transverse surfaces 601 which can be respectively matched and bonded with the adhesive tapes on the two clamping bodies, and two longitudinal portions 602 connected between the two transverse surfaces; the longitudinal part is provided with a V-shaped folding part, and the width of the V-shaped folding part after being unfolded is slightly larger than the width of the inner barrel 2 in the front and back direction.

When the width of the inner barrel 2 in the front-rear direction is large, the garbage bag can be folded in a manner as shown in fig. 14, that is, the V-shaped folding parts at both sides are staggered. Of course, the number of V-folds may be increased as shown in fig. 15.

And a connecting rod assembly for driving the bag opening clamp 5 to close or open is arranged at the outer side of the inner barrel 2, and a driving tension spring 56 is connected between the connecting rod assembly and the pedal bracket 30.

Each clamp is U-shaped, and the two clamps comprise a first clamp and a second clamp, wherein the two ends of the first clamp are respectively connected with the inner barrel 2 in a rotating mode, and the second clamp is connected with the connecting rod 53. The connecting positions of the two ends of the first clamp body and the inner barrel 2 are close to the front side of the inner barrel 2. Each clamp body comprises two parallel connecting rod parts and a clamping rod part positioned between one ends of the two connecting rod parts, the positions, close to the two ends, of each clamping rod part are respectively provided with a rubber strip seat 51, and the rubber strips 52 with two surfaces being bonding surfaces are respectively bonded on the rubber strip seats 51. The position of the rotary connection between the two clamp bodies is positioned at the middle part or the position close to the middle part of the length direction of the connecting rod part, and the position close to the front side of the inner barrel 2 is in a scissor-shaped movable hinge joint. In order to keep the two clamp bodies at the position of the rotational connection, an adaptive relief area may be further provided, preferably, the relief area is provided along the rotational sliding direction or the clamp bodies are provided in a corresponding concave or convex arc shape, so that the two clamp bodies are rotationally hinged in the same plane as much as possible. Preferably, the installation position of the adhesive tape 52 can also be adjusted adaptively according to the bag opening effect, for example, the adhesive tape is covered on the contact surfaces of the two clamps or distributed on the edge end in contact with the garbage bag, so as to obtain a better bag opening effect.

The upper end of the inner barrel 2 is a clip containing groove 24, and the upper end of the outer barrel 1 is sleeved on the outer wall of the clip containing groove 24. Clip through holes 25 for the bag opening clips 5 to pass through are symmetrically arranged on two sides of the bottom of the clip containing groove 24. At least the clamping rod part of the clamp body in the initial state is positioned in the space range of the clamp containing groove 24.

Further, when the bag opening clamp 5 drives the bag opening of the garbage bag to open through the adhesive tape, the bag opening part of the garbage bag is approximately positioned on the bottom of the clamp accommodating groove 24. In order to fix the bag mouth of the garbage bag, the rear side of the upper end of the inner barrel 2 is also rotatably connected with a gland 40, the front end of the gland 40 is connected with a fastener clamped with the side wall of the front part of the clip containing groove 24, so that when the gland 40 is covered, the bag mouth part of the garbage bag is clamped between the gland 40 and the bottom of the clip containing groove 24. Before the garbage bag is replaced, the pressing cover 40 needs to be manually turned over after the barrel cover 4 is opened, so that the pressing cover 40 also rotates by more than 90 degrees and abuts against the inner wall surface of the barrel cover 4.

In other embodiments, the pressing cover 40 may be provided in various forms in order to make the bag opening of the garbage bag flattened on the bung hole/clip receiving slot 24 of the inner barrel 2 in a more fitting manner after the clamped body is opened. For example, the shape of the pressing cover 40 can also be adapted to a ring shape having an extending section extending into the barrel, and the extending section can assist in unfolding and flattening the opening of the garbage bag. The material of the inflatable air bag/soft gel can also be adopted, the material is annularly arranged along the upper surface of the clip containing groove 24 or is arranged in a protruding way from the rear end of the can cover 4, and when the gland 40 covers the garbage bag, the bag opening of the garbage bag is pushed open and flattened due to the extending shape of the air bag or the gel.

The connecting rod assembly comprises a driving rod 55 which is integrally U-shaped and two connecting rods 53 which are symmetrically arranged, and the driving rod 55 and the connecting rods 53 are respectively connected with the outer wall of the inner barrel 2 in a rotating way. In other embodiments, it is also fully feasible that the connecting rod assembly is rotatably connected with the inner wall of the outer barrel.

The upper ends of the two connecting rods 53 are respectively connected with the two ends of the second clamp body in a rotating manner, and the other ends of the two connecting rods 53 are respectively connected with the two ends of the driving rod 55 in a relatively rotating manner and in a sliding manner. Specifically, a bar-shaped sliding groove is formed in the corresponding position of the connecting rod 53, a sliding column is arranged in the corresponding position of the driving rod 55 and is in sliding connection with the bar-shaped sliding groove, and the sliding column is cylindrical so that the sliding column and the driving rod can rotate relatively at the same time. In other embodiments, the positions of the bar-shaped sliding groove and the sliding column may be reversed, i.e., it is fully feasible to arrange the bar-shaped sliding groove on the driving rod 55.

The driving rod 55 and the connecting rod 53 respectively have various structural forms, the connecting rod 53 shown in fig. 2 is L-shaped, and the connecting rod 53 and the driving rod 55 are both in a structure form of a labor-consuming lever because the motion amplitude of the pedal is small and the action amplitude of the bag opening clamp 5 is large.

Further, the drive tension spring 56 is installed between the drive lever 55 and the pedal bracket 30. In addition, a reset tension spring 54 is connected between the driving rod 55 and the inner barrel 2, or between the connecting rod 53 and the inner barrel 2, or between the clamp body and the inner barrel 2, so that the driving tension spring 56 can be driven by the reset tension spring 54 to reset after the bag opening clamp 5 is driven to close. In addition, the elastic force of the return tension spring 54 is significantly smaller than that of the drive tension spring 56, that is, the elastic force of the drive tension spring 56 is greater than the sum of the tension of the return tension spring 54 and the tension required for driving the bag opening clamp 5. Of course, a counterweight may be disposed at the end of the driving rod 55 or the connecting rod 53 away from the pedal to drive the reset of the bag opening clamp 5.

In other embodiments, it is possible to adopt a torsion spring or an elastic spring to replace the return action of the return tension spring 54 and the drive tension spring 56.

And a locking piece 7 for blocking the driving tension spring 56 from driving the connecting rod assembly to move is arranged on the outer side of the inner barrel 2. A first bag box 6a is detachably mounted in a space between the outer wall of the front side of the inner barrel 2 and the inner wall of the front side of the outer barrel 1, the first bag box comprises a box body and a plurality of garbage bags 60 which are arranged in the box body and are sequentially connected through a point broken line, and each garbage bag is provided with an unlocking part used for driving the locking part 7 to unlock, so that the two clamps can be changed from an open state to a clamping state. The first pocket box 6a has various installation orientations, and is shown in fig. 6 at a position on the upper side of the step plate and at the front side of the inner tub. It is also possible to mount the first pouch sub-box 6a at the bottom of the inner tub, at the rear side of the inner tub, etc. in other embodiments.

Referring to fig. 6 to 8, a locking rod 551 is arranged in the middle of the driving rod 55, a latch 72 engaged with the locking rod 551 is arranged on the locking member 7, when the latch 72 is disengaged from the locking rod 551, the driving tension spring 56 can drive the driving rod 55 to rotate, and the driving rod 55 can drive the bag opening clamp 5 to change from the open state to the clamping state through the connecting rod 53.

Specifically, a locking bracket 22 is arranged at the lower part of the outer wall of the front side of the inner barrel 2, the locking member 7 is rotatably mounted on the locking bracket 22, and the locking catch 72 is located at the lower part of the locking member 7. A torsion spring 70 is installed between the lock member 7 and the lock bracket 22, so that the lock 72 of the lock member 7 and the lock rod 551 are in a stable locked state in an initial state, and after the lock member 7 performs an unlocking action, the lock member 7 can automatically recover to the initial state under the action of the elasticity of the torsion spring 70. In addition, the rear side wall surface of the latch 72 is an inclined reset slide inclined surface 721, and after the lock member 7 is unlocked, the lock lever 551 contacts the reset slide inclined surface 721, and when the drive lever 55 is reset, the lock lever 551 slides upward along the reset slide inclined surface 721, so that the latch 72 and the lock lever 551 are restored to the locked state.

The first bag box 6a is positioned above the lock catch bracket 22, the box loading opening 26 for loading the first bag box 6a is arranged at the bottom of the front side of the clip containing groove 24, and the first bag box 6a is connected with the inner barrel 2 through a buckle.

As shown in fig. 11, a locking member inlet 616 for the upper end of the locking member 7 to extend into is arranged at the bottom of the box body, two guide rods are arranged at the bottom of the box body and located at two sides of the locking member inlet 616, the two guide rods include a first guide rod 611 close to the outer tub 1 and a second guide rod 612 close to the inner tub 2, and the lower end of the first guide rod 611 is lower than the upper end of the locking member 7; the garbage bag 60 passes through the lower ends of the two guide rods, so that when the garbage bag 60 is dragged, the upper end of the locking member 7 is in sliding contact with the part of the garbage bag 60 located between the two guide rods. The offset arrangement of the two guide rods allows the trash bag 60 to remain flat while being dragged. In other embodiments, in order to prevent the garbage bag 60 from being dislocated or wrinkled during the dragging process, the guide rod can be replaced by a screw flattening roller, and left-right-handed screw threads are symmetrically distributed from the center of the guide rod to two sides, so that the garbage bag is continuously stretched and flattened during the dragging process.

Further, referring to fig. 8 and 16, the locking member 7 is provided at an upper end thereof with a driven protrusion 71, the garbage bag 60 is provided with a first welding line 603a in a width direction near a bottom portion thereof, the garbage bag is provided with a plurality of through holes in the width direction below the first welding line 603a, each of the through holes forms a first breaking line 604a, and at least one of the through holes simultaneously serves as the unlocking member. The distance between the through holes should be adjusted correspondingly according to the material characteristics of the garbage bag 60, so as to ensure that the distance is as small as possible, and the through holes are convenient for tearing the first broken line on the basis of driving the driven protrusion 71 to move. In fig. 16, in order to facilitate the tearing of the first broken line, the through holes are designed to be diamond-shaped, so that two opposite peaks of each through hole are positioned on the same straight line.

Specifically, when the garbage bag 60 is dragged, the surface of the garbage bag 60 slides relative to the driven protrusion 71 of the locking member 7, and the garbage bag 60 is generally made of a smooth plastic film, so that the friction force between the garbage bag 60 and the driven protrusion 71 is small, and the friction force is smaller than the elastic force of the torsion spring 70, so that the garbage bag 60 cannot drive the locking member 7 to rotate when sliding relative to the driven protrusion. When the through hole on the first dotted line 604a reaches the position of the driven protrusion 71 along with the dragging of the garbage bag 60, the driven protrusion 71 is clamped into the through hole, and along with the continuous dragging of the garbage bag 60, the through hole drives the driven protrusion 71 to move together, so that the locking member 7 rotates, and the locking member 7 is separated from the locking rod 551 to be unlocked. During the process from unlocking the locking member 7 to the process that the bag opening clamp 5 changes from the open state to the closed state to clamp the opening part of the garbage bag 60, the garbage bag 60 is dragged for a short distance, and in the process, the driven protrusion 71 gradually tilts along with the rotation of the locking member 7, so that the driven protrusion 71 is disengaged from the through hole on the first dotted line 604 a. That is, the first severance line 604a has already crossed the range of rotation of the latch 7 before the bag opener 5 is closed, so that each first severance line 604a triggers only one latch unlock.

Referring to fig. 8 to 12, the case body includes an outer case 61 having an open side, and an inner case 62 having an open upper end, and a plurality of garbage bags 60 connected by a dotted line are installed in the inner case 62 and stacked in a height direction of the inner case 62.

An inner box positioning rib 615 is formed at the lower part of the inner wall of the outer box 61, and the lower end of the inner box 62 is positioned at the upper end of the inner box positioning rib 615.

The outer wall of the inner box near the first guide bar 611 and the inner wall of the outer box 61 at the adjacent position form a bag channel 63 for the garbage bag 60 to pass through from top to bottom. Specifically, inner extension walls 621 are formed on two sides of the outer wall of the inner case 62 near the first guide bar 611, and the inner extension walls 621 abut against the inner wall of the outer case 61, so as to form the bag channel 63. The top of the inner box near one side of the bag channel is provided with a third guide rod 617, and the garbage bag 60 in the inner box 62 passes through the upper end of the third guide rod 617 and then enters the bag channel 63 downwards. A bag outlet 64 through which the garbage bag 60 passes is formed between one side of the side opening of the outer box 61 and the lower end of the inner box 62. Bag perforation holes 23 are arranged on the front side wall of the inner barrel 2 corresponding to the bag outlet 64 and used for the garbage bag 60 to penetrate into the inner barrel 2 from outside to inside.

In other embodiments, the bag perforation 23 disposed at the position corresponding to the bag opening 64 on the wall surface of the inner barrel 2 can be disposed with the same adaptability according to the mounting position of the first bag sub-box 6a, and it is only necessary to ensure that the garbage bag 60 passing through the first bag sub-box 6a can pass through the inner barrel 2 along a specific path and cooperate with the locking member 7 to realize unlocking.

The both sides of outer box 61 upper end are equipped with respectively with the buckle 614 of box dress mouth 26 lower extreme cooperation joint, outer box 61 top is equipped with handle hole 613. When the first pouch pack 6a is taken out from the inner tub 2, the snap 614 is snapped in the opposite direction to disengage the snap 614 from the lower end of the pack inlet 26, and the first pouch pack 6a is pulled out upward through the handle hole 613.

In addition, when the garbage bag in the first bag box 6a is used up, the locking member 7 cannot be driven to unlock through the garbage bag 60, and the bag opening clamp 5 will block the first bag box 6a from being taken out of the inner barrel 2, in order to solve this problem, a manual push button for pushing the locking member 7 to unlock can be slidably installed at the front side of the outer barrel 1 corresponding to the position of the locking member 7, so as to be used when replacing the first bag box 6 a. Or the first pouch case 6a is designed to be loaded from the front side direction of the outer tub 1, the problem can be completely avoided.

Example 2

The difference between this embodiment and embodiment 1 is that the structure of the garbage bag is modified. Specifically, as shown in fig. 17, a first welding line 603a is provided along the width direction at a position of the garbage bag 60 near the bottom, and a second dot-and-dash line 604b is located below the first welding line; a plurality of unlocking holes 605 are formed in the garbage bag 60 within the range of the first welding line 603a along the width direction, and at least one of the unlocking holes 605 serves as the unlocking part.

As shown in fig. 18, the garbage bag 60 has a first welding line 603a along the width direction near the bottom, and a second broken line 604b below the first welding line; a handle hole 606 is formed in the position, close to the bag opening, of the garbage bag 60, and the handle hole 606 is used as the unlocking part at the same time.

The handle aperture 606 shown in fig. 18 is generally bar-shaped and tends to deform the garbage bag 60 when the driven protrusions 71 are moved. Further, as shown in fig. 19, the handle holes 606 are designed to be smaller and two side by side, and each handle hole 606 is sized to allow a finger of an ordinary person to pass through.

As shown in fig. 20 and 21, a second welding line 603b is provided in the width direction of the disposal bag 60 near the bottom, and the second welding line forms a raised unlocking portion on one side of the disposal bag 60, and a second dot-and-dash line 604b is located below the second welding line 603 b. Be equipped with on the locking piece 7 with the driven step portion 71b of unblock portion cooperation joint for when disposal bag 60 was dragged, the unblock portion on the disposal bag can drive locking piece 7 unblock.

Example 3

The present embodiment differs from embodiment 1 in that the first bag box 6a is replaced with a second bag box 6 b: parts of the second pack 6b which are the same as those of the first pack 6a are given the same reference numerals. Specifically, as shown in fig. 22, the second bag box 6b of the present embodiment is loaded into the garbage can from the front side of the outer tub 1, and compared with the loading from the upper side of the inner tub 2, the loading from the front side of the outer tub 1 avoids the obstruction which may be generated by the bag opening clip 5.

Further, as shown in fig. 23 and 24, the container body includes an outer container 61 having an open side, and an inner container 62 having an open upper end, and a plurality of garbage bags connected by a dotted line are mounted in the inner container and stacked in a height direction of the inner container 62.

A bag channel 63 for the garbage bag 60 to pass through from top to bottom is formed between the outer wall of the inner box 62 near the outer tub 1 and the inner wall of the outer box at the adjacent position. Specifically, inner extension walls 621 are formed on two sides of the outer wall of the inner box 61 close to one side of the outer tub 1, and the inner extension walls 621 abut against the inner wall of the outer box, so as to form the bag channel 63. The top of the inner box 61 near one side of the bag channel 63 is provided with a third guide bar 617, and the garbage bag 60 in the inner box 61 passes through the upper end of the third guide bar 617 and then enters the bag channel 63. A bag outlet 64 through which the garbage bag 60 passes is formed between one side of the side opening of the outer box 61 and the lower end of the inner box 62. A bag perforation 23 is arranged on the front side wall surface of the inner barrel 2 corresponding to the bag outlet 64 and is used for the garbage bag to penetrate into the inner barrel 2 from outside to inside.

An unlocking shift lever 68 which can drive the locking piece 7 to unlock in the rotating process is rotatably arranged at the position, located at the extending opening of the locking piece 7, of the inner bottom of the outer box 61 of the box body. A shifting piece 681 is formed on the side wall of the unlocking shifting rod 68 corresponding to the position of the lock catch on the lock piece 7, and when the unlocking shifting rod 68 rotates for one circle, the shifting piece shifts the lock catch once to unlock the lock piece 7.

A rubber roller 66 is rotatably arranged at the inner lower part of the outer box 61 of the box body, and one outer wall surface of the garbage bag 60 is in transmission connection with the outer wall of the rubber roller 66 through friction force; the rubber roller 66 and the unlocking shift lever 68 are in transmission connection through a reduction gear set 67, and when the distance moved by the reduction gear set 67 is just the length of one garbage bag 60, the unlocking shift lever 68 rotates just one circle. The unlocking part is formed by the outer wall surface of the garbage bag 60 contacted with the rubber roller 66.

Further, an adhesive rubber sleeve is fixedly sleeved on the outer surface of the rubber roller 66, so that the garbage bag 60 and the rubber roller 66 move at the same linear speed. In order to prevent relative sliding between the garbage bag 60 and the rubber roller 66, a sufficient contact surface between the garbage bag 60 and the rubber roller 66 should be provided. First deflector roll 661 is still installed to the position that the lower part is higher than the tip under rubber roll 66 in outer box 61, second deflector roll 662 is still installed to the position that the lower part corresponds out sack 64 in outer box 61. The garbage bag 60 guided downward from the bag passage 63 passes around the lower end of the rubber roller 66, and then the garbage bag 60 passes around the upper end of the first guide roller 661, passes around the lower end of the second guide roller 662, and finally passes out of the bag outlet 64. The first guide roller 661 enables the garbage bag 60 and the rubber roller 66 to have a larger contact surface in the circumferential direction, and simultaneously enables the garbage bag 60 and the unlocking shift lever 68 to keep a sufficient distance, so as to prevent the shifting piece from obstructing the dragging of the garbage bag.

The speed reduction gear set 67 comprises a first gear coaxially and fixedly connected with one end of the rubber roll 68, a fourth gear coaxially and fixedly connected with one end of the unlocking deflector rod, and a second gear and a third gear which are rotatably arranged on the outer side wall of the outer box, wherein the second gear is coaxially and fixedly connected with the third gear, and the number of teeth of the second gear is greater than that of the third gear; the first gear is in meshed transmission connection with the second gear, and the third gear is in meshed transmission connection with the fourth gear.

The difference between the embodiment and the embodiment 1 is mainly that the locking member 7 is pushed to unlock by the cooperation of the rubber roller 66 and the unlocking shift lever 68, and the rubber roller 66 and the garbage bag 60 are transmitted by friction force, so as to replace the mode of directly driving the locking member 7 to unlock by directly using the hole or the protrusion on the garbage bag 60 in the embodiment 1. The quality (mainly toughness, thickness) requirement to the disposal bag of this embodiment is lower, and embodiment 1 then is higher relatively to the requirement of disposal bag, and manufacturer or user can select the sack box according to actual demand, and other parts of garbage bin can be suitable for completely, need not adjust the inner structure of garbage bin, and the suitability is strong.

In addition, because the rubber roller 66 is arranged in the second bag sub-box 6b instead of the garbage can, when replacing the bag sub-box, a common user only needs to pass the end part of the garbage bag through the bag perforation 23 on the inner barrel 2 and then install the bag box on the garbage can, and the garbage bag does not need to be bypassed by other parts, so that the operation is convenient.

On the other hand, due to the installation mode of the rubber roller 66, even if a few errors are generated in the process of dragging the garbage bag, the errors can be eliminated when the bag sub box is replaced, and the situation that the garbage can cannot be normally used due to excessive accumulation of the errors can be avoided.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A trash can, comprising:

an outer tub;

an inner tub fixedly or detachably installed in the outer tub;

the barrel cover is rotatably arranged on one side of the upper end of the inner barrel or the outer barrel, an uncovering support rod is rotatably connected to the position, close to the rotating shaft, of the barrel cover, and the uncovering support rod drives the barrel cover to rotate upwards when moving upwards;

the pedal is positioned on the front side of the outer barrel and close to the bottom, the pedal is connected with a pedal bracket, the pedal bracket is rotatably connected with the outer barrel or the inner barrel, and one end of the pedal bracket, which is far away from the pedal, is connected with the uncovering support rod;

the bag opening clamp is arranged on the upper part of the inner barrel or the outer barrel; the bag opening clamp comprises two clamp bodies which are mutually rotatably connected; each clamp body is connected with an adhesive tape capable of adhering the garbage bag, so that when the two clamp bodies are closed, clamp the garbage bag and then are opened, the opening of the garbage bag can be opened;

the method is characterized in that:

a connecting rod assembly for driving the bag opening clamp to close or open is arranged on the outer side of the inner barrel or the inner side of the outer barrel, and a driving tension spring is connected between the connecting rod assembly and the pedal or the pedal bracket;

a locking piece for blocking the driving tension spring from driving the connecting rod assembly to move is arranged on the outer side of the inner barrel or the inner side of the outer barrel;

a first bag box or a second bag box is selectively arranged in the space between the inner barrel and the outer barrel;

1) the first bag box comprises a box body and a plurality of garbage bags which are arranged in the box body and are sequentially connected through a dotted line and a broken line, and each garbage bag is provided with an unlocking part used for driving a locking part to unlock, so that the two clamps can be changed into a clamping state from an opening state;

the unlocking part is a hole-shaped part or a protruding part arranged on the garbage bag, and the hole-shaped part or the protruding part drives the locking piece to unlock when sliding through the locking piece;

2) the second bag box comprises a box body and a plurality of garbage bags which are arranged in the box body and are sequentially connected through a dotted line and a broken line, and each garbage bag is provided with an unlocking part used for driving a locking part to unlock, so that the two clamps can be changed into a clamping state from an opening state;

an unlocking deflector rod capable of driving the locking piece to unlock in the rotating process is rotatably arranged at the bottom in the box body of the second bag box, and the unlocking deflector rod pushes the locking piece to unlock once when rotating for one circle;

a rubber roller is rotatably arranged at the lower part in the box body of the second bag sub-box, and one outer wall surface of the garbage bag is in transmission connection with the outer wall of the rubber roller through friction force; the rubber roll is in transmission connection with the unlocking deflector rod through a reduction gear set, and when the distance of the movement of the garbage bags is just equal to the length of one garbage bag, the unlocking deflector rod rotates just one circle; the outer wall surface of the garbage bag in contact with the rubber roller forms the unlocking part.

2. A waste bin as claimed in claim 1, wherein: a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, a plurality of through holes are arranged on the garbage bag, below the welding line, along the width direction, the through holes form the point broken line, and at least one through hole is simultaneously used as the unlocking part;

alternatively, the first and second electrodes may be,

a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, and the point breaking line is positioned below the welding line; a plurality of unlocking holes are formed in the garbage bag within the range of the welding line along the width direction, and at least one unlocking hole is used as the unlocking part;

alternatively, the first and second electrodes may be,

a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, and the point breaking line is positioned below the welding line; a handle hole is formed in the position, close to the bag opening, of the garbage bag, and the handle hole is used as the unlocking part at the same time;

3. A waste bin according to claim 1, wherein: a welding line is arranged at the position, close to the bottom, of the garbage bag along the width direction, a protruding unlocking part is formed on one surface of the garbage bag through the welding line, and the point breaking line is located below the welding line;

be equipped with on the locking piece with the driven step portion of unblock portion cooperation joint for when the disposal bag was dragged, the unblock portion on the disposal bag can drive the unblock of locking piece.

4. A waste bin as claimed in claim 1, 2 or 3, wherein: each garbage bag is provided with two transverse surfaces which can be matched and bonded with the adhesive tapes on the two clamping bodies respectively, and two longitudinal parts connected between the two transverse surfaces; the longitudinal portion includes at least one fold in a V-shape.

5. A waste bin as claimed in claim 1, 2 or 3, wherein: a lock catch bracket is arranged on one outer wall of the inner barrel, and the locking piece is rotatably arranged on the lock catch bracket; the first bag box is positioned above the lock catch bracket, a locking piece extending opening for the upper end of the locking piece to extend into is arranged at the bottom of the box body of the first bag box, two guide rods are arranged at the bottom of the box body of the first bag box and positioned at two sides of the locking piece extending opening, the two guide rods comprise a first guide rod close to the outer barrel and a second guide rod close to the inner barrel, and the lower end of the first guide rod is lower than the upper end of the locking piece; the garbage bag penetrates through the lower ends of the two guide rods, so that when the garbage bag is dragged, the upper end of the locking piece is in sliding contact with the part, located between the two guide rods, of the garbage bag.

6. A waste bin as claimed in claim 1, wherein: each clamp body is U-shaped, and the two clamp bodies comprise a first clamp body and a second clamp body, wherein the two ends of the first clamp body are respectively connected with the inner barrel in a rotating mode, and the second clamp body is connected with the connecting rod assembly;

the connecting rod assembly comprises a driving rod which is integrally U-shaped and two symmetrically arranged connecting rods, and the driving rod and the connecting rods are respectively in rotating connection with the outer wall of the inner barrel;

the upper ends of the two connecting rods are respectively and rotatably connected with two ends of the second clamp body, and the other ends of the two connecting rods are respectively and relatively rotatably and slidably connected with two ends of the driving rod;

the driving tension spring is arranged between the driving rod and the pedal bracket;

the locking mechanism is characterized in that a locking rod is arranged in the middle of the driving rod, a lock catch matched and clamped with the locking rod is arranged on the locking piece, and when the lock catch is disengaged from the locking rod, the driving tension spring can drive the driving rod to rotate.

7. A waste bin as claimed in claim 1, wherein: the lower end of the uncovering support rod is connected with a limiting sliding sleeve, and the limiting sliding sleeve is connected with one end, far away from the pedal, of the pedal bracket in a sliding manner;

when the pedal moves downwards to the limit position, the barrel cover rotates upwards for more than 90 degrees, and no interaction force exists between the pedal bracket and the limiting sliding sleeve in the vertical direction after the pedal is reset;

when the pedal moves downwards and the barrel cover rotates upwards to be smaller than 90 degrees, the barrel cover can reset under the action of self gravity and the gravity of the cover opening support rod.

8. A waste bin as claimed in claim 1, wherein: the upper part of the inner barrel is provided with a box loading opening for loading a first bag box, and two sides of the upper end of the box body of the first bag box are provided with buckles which are matched and clamped with the lower end of the box loading opening.

9. A waste bin according to claim 5, further comprising: the box body of the first bag sub-box comprises an outer box with an opening on the side surface and an inner box with an opening at the upper end, and a plurality of garbage bags connected through a point broken line are arranged in the inner box and stacked along the height direction of the inner box;

a bag channel for garbage bags to pass through from top to bottom is formed between the outer wall of one side of the inner box close to the first guide rod and the inner wall of the outer box at the adjacent position.