CN210681942U

CN210681942U - Uncovering mechanism of garbage can

Info

Publication number: CN210681942U
Application number: CN201921217624.3U
Authority: CN
Inventors: 吕益美
Original assignee: 吕益美
Current assignee: Yongkang Qingwei industry and Trade Co.,Ltd.
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-06-05
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a cover opening mechanism of a garbage can, which comprises an outer barrel; an inner barrel; the barrel cover is rotatably arranged on one side of the upper end of the outer barrel, and an uncovering support rod is rotatably connected to the position, close to the rotating shaft, of the barrel cover; the pedal is connected with a pedal bracket, the pedal bracket is rotationally connected with the inner barrel, and one end of the pedal bracket, which is far away from the pedal, is connected with the uncovering stay bar; 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 of the pedal bracket far away from the pedal 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 less than 90 degrees, the barrel cover can reset under the action of self gravity and the gravity of the cover opening support rod. The barrel cover can be driven by the pedal to turn over for more than 90 degrees in the process of replacing the garbage bag to realize automatic positioning.

Description

Uncovering mechanism of garbage can

Technical Field

The utility model belongs to house daily necessities field, concretely relates to can open garbage bin of disposal bag sack automatically.

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 above-mentioned patent, uncap and two functions of cover bag are driven respectively by uncap footboard and cover bag footboard respectively, and this has just caused 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.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: aiming at the defects in the prior art, the cover opening mechanism suitable for the automatic bagging garbage can is provided.

In order to realize the purpose of the utility model, the following technical scheme is adopted to realize: a cover opening mechanism of a garbage can comprises:

an outer tub;

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

the bin cover is rotatably arranged on one side of the upper end of the inner bin or the outer bin and is suitable for covering a bag opening of a garbage bag, an uncovering support rod is rotatably connected to the position, close to the rotating shaft, of the bin cover, and the uncovering support rod drives the bin 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 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 cover opening support rod is provided with a clamping head, a limiting stop block is arranged on a moving path, corresponding to the clamping head, on the outer wall of the inner barrel or the inner wall of the outer barrel, when the rotation of the barrel cover is smaller than 90 degrees, the clamping head is located below the limiting stop block, and when the clamping head crosses the limiting stop block, the rotation of the barrel cover exceeds 90 degrees.

Preferably, the method comprises the following steps: the chuck is formed by bending the rod-shaped uncovering support rod made of metal materials.

Preferably, the method comprises the following steps: when the barrel cover rotates upwards to exceed 90 degrees and the side wall of the opening supporting rod abuts against the inner wall of the upper end of the inner barrel, the barrel cover is at the extreme position of the opening state, and the included angle between the plane where the barrel cover is located and the plane where the opening of the inner barrel is located is 100 degrees and 120 degrees.

Preferably, the method comprises the following steps: when the barrel cover is driven by the pedal to rotate by 90 degrees, the ratio of the displacement p of the pedal in the vertical direction to the total displacement q of the pedal stepping to the limit position is 3/5-4/5.

Preferably, the method comprises the following steps: the inner wall of the barrel cover is fixedly connected with a supporting rod seat close to the rotating shaft, the upper end of the uncovering supporting rod is a rotating head which is bent into a horizontal shape, and the rotating head is rotatably connected with the supporting rod seat.

Preferably, the method comprises the following steps: the garbage bag also comprises a gland rotationally connected with the inner barrel/outer barrel, and the bag opening part of the garbage bag can be compressed between the gland and the upper surface of the inner barrel.

Preferably, the method comprises the following steps: the gland is provided with a convex inflatable air bag/soft rubber material, and when the gland is covered, the inflatable air bag/soft rubber material can assist the opening of the garbage bag to unfold.

Preferably, the method comprises the following steps: an extension section extends inwards from the contact position of the edge of the gland and the opening of the inner barrel, and the extension section can assist the opening of the garbage bag to be unfolded.

Preferably, the method comprises the following steps: the barrel cover and/or the gland can be used for controlling the barrel cover and/or the gland to rotate, and the buffer structure can be one or more of the following structures: the buffer structure is a one-way damping structure, the one-way damper is arranged at the position of the inner barrel close to the uncovering support rod, and the uncovering support rod is provided with a damping connecting rod connected with the movable end of the one-way damper; the buffer structure is arranged at the position of the rotating shaft of the barrel cover and/or the gland and is one or more of a torsion spring, an elastic sheet, a spring, a concave cam, a rubber gasket and a reduction gear set.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a garbage bin that mechanism adapted of uncapping has the bag clamp of opening that is used for automatic opening disposal bag that sets up at the bung hole, so need keep the bung to be in stable state of opening of turning over at the in-process of changing the disposal bag. Correspondingly, the utility model discloses a mechanism of uncapping makes the bung have two kinds of operating condition: 1. when the garbage is normally put into the garbage can, the pedal is lightly stepped to ensure that the opening degree of the can cover does not exceed 90 degrees, so that the can cover can automatically rotate downwards to reset under the action of the self gravity and the gravity of the opening supporting rod connected with the can cover; 2. when the disposal bag needs to be changed, the pedal is stepped on to the bottom (the limit position is stepped on downwards), then the bung rotates and exceeds 90 degrees, the gravity center of the bung moves to the rear position of the outer barrel, the bung can not reset by self gravity, and after the pedal resets, no interaction force exists between the pedal support and the limiting sliding sleeve in the vertical direction, then the bung is in a relatively stable opening state, various operations for changing the disposal bag are convenient, and the bung is prevented from being blocked.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required 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 for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

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

Fig. 2 is an exploded view of the trash can.

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 garbage can.

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 assembly structure of the locking member and the pouch case.

Fig. 9 is a schematic view of the structure of the pouch case.

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

FIG. 11 is a schematic view of an outer box structure of the bag-box.

Fig. 12 is a schematic view of the inner case structure of the 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 configuration for the bag box.

Fig. 23 is another schematic view of the construction of the pouch case.

Fig. 24 is a schematic sectional structure view of the pouch case shown in fig. 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 of the invention. As used in the specification 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations. The terms "upper", "lower", "top", "bottom", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of 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, 3 and 5, the present embodiment is a lid opening mechanism for a trash can, including an outer can 1 and an inner can 2, wherein the inner can 2 is fixedly or detachably mounted in the outer can 1.

The barrel cover is characterized by further comprising a barrel cover 4, the barrel cover 4 is rotatably arranged on one side of the upper end of the inner barrel 2 or the outer barrel 1, an uncovering support rod 41 is rotatably connected to the position, close to the rotating shaft, of the barrel cover 4, and the barrel cover 4 is driven to rotate upwards when the uncovering support rod 41 moves upwards.

The novel washing machine 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 pedal support 30 is rotatably connected with the outer barrel 1 or the inner barrel 2, and one end, far away from the pedal 3, of the pedal support 30 is connected with an uncovering support rod 41.

The lower end of the cover opening support rod 41 is connected with a limiting sliding sleeve 42, and the limiting sliding sleeve 42 is connected with one end of the pedal bracket 30 far away from the pedal 3 in a sliding manner.

When the pedal 3 moves downwards to the limit position, the barrel cover 4 rotates upwards by 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; when the pedal 3 moves downwards and the barrel cover 4 rotates upwards to be less than 90 degrees, the barrel cover 4 can reset under the action of self gravity and the gravity of the cover opening support rod.

The cap opening brace 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 is less than 90 degrees, the clamping head 43 is positioned below the limit stop 44, and when the clamping head 43 crosses the limit stop 44, the rotation of the barrel cover 4 exceeds 90 degrees. The chuck 43 is formed by bending a rod-shaped lid-opening stay 41 made of a metal material.

When the barrel cover 4 rotates upwards to exceed 90 degrees and the side wall of the cover opening support rod 41 abuts against the inner wall of the upper end of the inner barrel 2, the barrel cover 4 is at the limit position of the opening state, and the included angle between the plane where the barrel cover 4 is located and the plane where the barrel opening of the inner barrel 2 is 100 degrees and 120 degrees.

When the barrel cover 4 is driven by the pedal 3 to rotate 90 degrees, the ratio of the displacement p of the pedal 3 in the vertical direction to the total displacement q of the pedal 3 stepping to the limit position is 7 to 10. For example, if the total stroke of the pedal 3 is 30mm, the stepping width of the pedal 3 is less than 21mm, and the stepping width does not exceed 90 degrees.

A supporting rod seat 45 is fixedly connected to the inner wall of the barrel cover 4 close to the rotating shaft, the upper end of the uncovering supporting rod 41 is a rotating head bent into a horizontal shape, and the rotating head is rotatably connected with the supporting rod seat 45.

In order to make the opening action of the dustbin cover 4 more gentle, the opening and closing processes are performed without clamping hands, and a buffer structure can be additionally arranged. Referring to fig. 5, a buffer structure using 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 installed 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.

When the garbage is normally put into the garbage can, the pedal 3 is lightly stepped to ensure that the can cover 4 is turned over by no more than 90 degrees, so that the can cover 4 can automatically rotate downwards to reset under the action of the self gravity and the gravity of the opening-cover support rod 41 connected with the can cover under the action of the self gravity after the garbage is thrown; when the disposal bag needs to be changed, the pedal is stepped on to the bottom (the limit position is stepped on downwards), then the rotation of the barrel cover 4 exceeds 90 degrees, the gravity center of the barrel cover 4 moves to the rear position of the outer barrel, the barrel cover 4 can not reset by self gravity, and no interaction force exists between the pedal support 30 and the limiting sliding sleeve 42 in the vertical direction after the pedal 3 resets, then the barrel cover 4 is in a relatively stable turning-open state, various operations for changing the disposal bag are convenient, and the barrel cover 4 is prevented from being blocked.

Example 2

Referring to fig. 1 to 12, the present embodiment is a trash can, which includes an outer can 1 and an inner can 2, and the inner can is fixedly or detachably mounted in the outer can. The garbage can further comprises a can cover 4, the can cover is rotatably arranged on one side of the upper end of the inner barrel or the outer barrel, an uncovering support rod 41 is rotatably connected to the position, close to the rotating shaft, of the can cover, and the uncovering support rod drives the can cover to rotate upwards when moving upwards.

The garbage bin still includes footboard 3, and footboard 3 is located outer barrel 1 front side and is close to the bottom position, and footboard 3 is connected with a footboard support 30, and footboard support 30 both sides are close to the middle part position and are connected with interior bucket 2 rotation, and the one end that footboard support 30 kept away from the footboard is connected with the vaulting pole of uncapping. 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 step bracket 30 remote from the step 3 is connected to a lid 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 bung 4 manual turn 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 cap opening brace 41 is provided with a clamping head 43, a limit stop 44 is arranged on a moving path corresponding to the clamping head 43 on the outer wall of the inner barrel 2 or the inner wall of the outer barrel 1, 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 crosses the limit stop, the rotation of the barrel cover 4 exceeds 90 degrees. That is to say, dop 43 and restriction dog 44 cooperate, when trampling the footboard, do not continue down to step on when feeling the resistance, dop 43 is in when supporting the state at restriction dog lower extreme promptly, bung 4 rotates and is less than 90 degrees, be convenient for lose into rubbish back bung 4's automatic re-setting like this, need make bung 4 rotate and exceed 90 and avoid its automatic re-setting when needing to change the disposal bag, continue down to step on when feeling the resistance when trampling the footboard, uncap vaulting pole 41 produces certain deformation and makes dop 43 cross the restriction dog, bung 4 rotates and exceeds 90 degrees promptly. 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 by its own weight and the cover opening lever 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 passes through 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 also comprises a bag opening clamp 55, and a bag opening clamp 5 is arranged 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 way. Each clamp body is connected with an adhesive tape 52 capable of adhering the garbage bag 60, so that when the two clamp bodies are closed, clamp the garbage bag 60 and then open, the edges of the bag openings of the garbage bags are adsorbed respectively to open the bag openings of the garbage bags 60.

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 trash bag has two transverse surfaces 601 capable of being respectively matched and bonded with the adhesive tapes on the two clamp 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-back direction is large, the garbage bag can be folded in the manner shown in fig. 14, that is, the V-shaped folding parts at the two 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 way, and the second clamp is connected with the connecting rod 53 component. The connecting position of the two ends of the first clamp body 56 and the inner barrel 2 is 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 rubber strips 52 with two surfaces being bonding surfaces are respectively bonded on each rubber strip seat 51. The position of the rotary connection between the two clamping 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 adaptively adjusted according to the bag opening effect, for example, the adhesive tape is fully distributed on the contact surfaces of the two clamping bodies 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 which is clamped with the side wall of the front part of the clip containing groove 24, so that the bag mouth part of the garbage bag is clamped between the gland 40 and the bottom of the clip containing groove 24 when the gland 40 is covered. 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 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 motion amplitude of the bag opening clamp 5 is large.

Further, a 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 driving tension spring 56, i.e., the elastic force of the driving 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 outside the inner barrel 2. The bag box 6 is detachably installed in the 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 6 comprises a box body and a plurality of garbage bags 60 which are installed in the box body and are sequentially connected through dotted lines, and each garbage bag is provided with an unlocking part for driving the locking part 7 to unlock, so that the two clamps can be changed into a clamping state from an opening state. The bag box 6 has a variety of mounting orientations, and is shown in FIG. 6 at a position above the pedal and forward of the inner barrel. It is also possible to mount the pouch case 6 at the bottom of the inner tub, the rear side of the inner tub, etc. in other embodiments.

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

Specifically, the lock catch bracket 22 is arranged at the lower part of the outer wall of the front side of the inner barrel 2, the lock catch 7 is rotatably mounted on the lock catch bracket 22, and the lock catch 72 is positioned at the lower part of the lock catch 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 is in a stable locking state with the locking rod 551 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 slope 721, and after the lock member 7 is unlocked, the lock lever 551 contacts the reset slide slope 721, and when the drive lever 55 is reset, the lock lever 551 slides upward along the reset slide slope 721, so that the latch 72 and the lock lever 551 are restored to the locked state.

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

As shown in fig. 11, the bottom of the box body is provided with a locking member inlet 616 for the upper end of the locking member 7 to extend into, two guide rods are mounted 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 its upper end with a driven protrusion 71, the garbage bag 60 is provided with a first welding line 603a in the width direction near the bottom, and 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 forming a first breaking line 604a, and at least one of the through-holes simultaneously serves as an unlocking part. The distance between each through hole should be adjusted according to the material characteristic of disposal bag 60 is corresponding, ensures that the distance is as little as possible for the through hole is convenient for tear open of first broken string on can driving the basis that driven arch 71 removed. In fig. 16, in order to facilitate the tearing of the first broken line, the through holes are designed in a diamond structure, 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 case positioning rib 615 is formed at a lower portion of an inner wall of the outer case 61, and a lower end of the inner case 62 is positioned at an upper end of the inner case 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 near the inner box 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 the side opening of the outer box 61 and the lower end of the inner box 62. The front side wall surface of the inner barrel 2 corresponding to the bag outlet 64 is provided with a bag perforation 23 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 installation position of the bag box 6, so long as the garbage bag 60 passing through the bag box 6 can pass through the inner barrel 2 along a specific path and cooperate with the locking member 7 to realize unlocking.

Two sides of the upper end of the outer box 61 are respectively provided with a buckle 614 which is matched and clamped with the lower end of the box loading port 26, and the top of the outer box 61 is provided with a handle hole 613. When the pouch case 6 is taken out from the inner tub 2, the snap 614 is snapped in opposite directions to disengage the snap 614 from the lower end of the case insertion opening 26, and the pouch case 6 is pulled out upward through the handle hole 613.

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

Example 3

The difference between this embodiment and embodiment 2 is that the structure of the garbage bag is modified. Specifically, as shown in fig. 17, the garbage bag 60 is provided with a first welding line 603a along the width direction near the bottom, and a second dot-and-dash line 604b is located below the first welding line 603 a; the garbage bag 60 is provided with a plurality of unlocking holes 605 in the width direction within the range of the first welding line 603a, and at least one of the unlocking holes 605 serves as an unlocking part.

In fig. 17, the unlocking hole 605 is moved down to be located between the second dot-dashed line 604b and the first welding line 603a and extend in the width direction of the bag, and at least one unlocking hole 605 serves as an unlocking portion.

As shown in fig. 18, the garbage bag 60 has a first welding line 603a in the width direction near the bottom, and a second dot-and-dash line 604b below the first welding line; the garbage bag 60 is provided with a handle hole 606 near the bag opening, and the handle hole 606 is used as an 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, the garbage bag 60 is provided with a second welding line 603b in the width direction near the bottom, the second welding line forms a raised unlocking portion on one surface of the garbage bag 60, and the second dot-and-dash line 604b is located below the second welding line 603 b. The locking piece 7 is provided with a driven step portion 71b which is matched and clamped with the unlocking portion, so that when the garbage bag 60 is dragged, the unlocking portion on the garbage bag can drive the locking piece 7 to unlock.

Example 4

The present embodiment is different from embodiment 2 in that the structure of the bag box 6 and the garbage bag is modified. Specifically, as shown in fig. 22, the bag box 6 of the present embodiment is loaded into the trash can from the front side of the outer tub 1, and compared with the loading from the top of the inner tub 2, the loading from the front side of the outer tub 1 avoids the obstruction that may be caused by the bag opening clip 5.

Further, as shown in fig. 23 and 24, 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 connected by a dotted line are installed in the inner case 62 and stacked in a height direction of the inner case 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 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 the side opening of the outer box 61 and the lower end of the inner box 62. The front side wall surface of the inner barrel 2 corresponding to the bag outlet 64 is provided with a bag perforation 23 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. The side wall of the unlocking shift lever 68 is formed with a shift sheet 681 corresponding to the position of the lock catch on the lock member 7, and when the unlocking shift lever 68 rotates for one turn, the shift sheet shifts the lock catch once to unlock the lock member 7.

A rubber roller 66 is also 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 the reduction gear set 67, and when the distance moved by the reduction gear set 67 to the garbage bags 60 is just the length of one garbage bag 60, the unlocking shift lever 68 rotates just one circle. The outer wall surface of the garbage bag 60 contacting with the rubber roller 66 forms an unlocking part.

Further, the outer surface of the rubber roller 66 is fixedly sleeved with a sticky rubber sleeve, 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. A first guide roller 661 is mounted at a position higher than the lower end of the rubber roller 66 at the lower part of the outer box 61, and a second guide roller 662 is mounted at a position corresponding to the bag outlet 64 at the lower part of the 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 provides a larger contact surface between the garbage bag 60 and the rubber roller 66 in the circumferential direction, and simultaneously maintains a sufficient distance between the garbage bag 60 and the unlocking deflector rod 68, so as to prevent the pulling 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 2 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 2. 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 bag box 6 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 bag box 6 instead of the garbage can, when the bag box 6 is replaced, a common user only needs to put the end part of the garbage bag into the garbage can after penetrating the bag through hole 23 on the inner barrel 2, and the garbage bag does not need to be wound around 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 slight error exists in the process of dragging the garbage bag, the error can be eliminated when the bag sub-box 6 is replaced, and the situation that the garbage can cannot be normally used due to excessive accumulation of errors can be avoided.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cover opening mechanism of a garbage can comprises: an outer tub;

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

the method is characterized in that:

2. A cap opening mechanism for a trash can as claimed in claim 1, further comprising: the cover opening support rod is provided with a clamping head, a limiting stop block is arranged on a moving path, corresponding to the clamping head, on the outer wall of the inner barrel or the inner wall of the outer barrel, when the rotation of the barrel cover is smaller than 90 degrees, the clamping head is located below the limiting stop block, and when the clamping head crosses the limiting stop block, the rotation of the barrel cover exceeds 90 degrees.

3. A cap opening mechanism for a trash can as claimed in claim 2, further comprising: the chuck is formed by bending the rod-shaped uncovering support rod made of metal materials.

4. A cap opening mechanism for a trash can as claimed in claim 1 or 2, further comprising: when the barrel cover rotates upwards to exceed 90 degrees and the side wall of the opening supporting rod abuts against the inner wall of the upper end of the inner barrel, the barrel cover is at the extreme position of the opening state, and the included angle between the plane where the barrel cover is located and the plane where the opening of the inner barrel is located is 100 degrees and 120 degrees.

5. A cap opening mechanism for a trash can as claimed in claim 1 or 2, further comprising: when the barrel cover is driven by the pedal to rotate by 90 degrees, the ratio of the displacement p of the pedal in the vertical direction to the total displacement q of the pedal stepping to the limit position is 3/5-4/5.

6. A cap opening mechanism for a trash can as claimed in claim 1, further comprising: the inner wall of the barrel cover is fixedly connected with a supporting rod seat close to the rotating shaft, the upper end of the uncovering supporting rod is a rotating head which is bent into a horizontal shape, and the rotating head is rotatably connected with the supporting rod seat.

7. A cap opening mechanism for a trash can as claimed in claim 1, 2, 3 or 6, wherein: the garbage bag also comprises a gland rotationally connected with the inner barrel/outer barrel, and the bag opening part of the garbage bag can be compressed between the gland and the upper surface of the inner barrel.

8. A cap opening mechanism for a trash can as claimed in claim 7, wherein: the gland is provided with a convex inflatable air bag/soft rubber material, and when the gland is covered, the inflatable air bag/soft rubber material can assist the opening of the garbage bag to unfold.

9. A cap opening mechanism for a trash can as claimed in claim 7, wherein: an extension section extends inwards from the contact position of the edge of the gland and the opening of the inner barrel, and the extension section can assist the opening of the garbage bag to be unfolded.

10. A cap opening mechanism for a trash can as claimed in claim 1 or 2 or 3 or 6 or 8 or 9, wherein: the barrel further comprises a gland rotatably connected to the inner barrel/outer barrel, and a buffer structure for controlling the rotation of the barrel cover and/or the gland, wherein the buffer structure can be one or more of the following structures:

the buffer structure is a one-way damping structure, the one-way damper is arranged at the position of the inner barrel close to the uncovering support rod, and the uncovering support rod is provided with a damping connecting rod connected with the movable end of the one-way damper;

the buffer structure is arranged at the position of the rotating shaft of the barrel cover and/or the gland and is one or more of a torsion spring, an elastic sheet, a spring, a concave cam, a rubber gasket and a reduction gear set.