A lid opening structure for a garbage can

Abstract

The present invention relates to a cover opening structure of a garbage can, comprising a barrel body, a seat body at the upper end of the barrel body, a garbage inlet being arranged on the seat body, and an open cover structure being arranged at the garbage inlet, the open cover structure comprising a flat flip cover, a driving device and a transmission mechanism, rotational connection parts are symmetrically arranged at both ends of the flip cover, the flip cover is pivotally connected to the inner wall of the garbage inlet through the rotational connection parts, the driving device and the transmission mechanism are arranged on the barrel body and / or the seat body, the output end of the driving device is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the free end of the rotational connection part; the driving structure of the flip cover of the present invention has multiple modes, and can adopt one of the modes of motor drive, manual button or foot pedal, etc. The driving structure is novel and has good reliability. The driving structure is suitable for flip covers with single cover and double cover structures at the same time, and the present invention has the characteristics of reasonable structure and good applicability.

Description

Technical Field

[0001] The invention relates to daily necessities, in particular to a cover opening structure of a garbage can. Background Art

[0002] Trash cans are commonly used daily necessities and are very commonly used in homes, hotels or public areas. For the sake of hygiene, most trash cans are currently equipped with flaps, which need to be opened when throwing garbage. There are also a variety of ways to open the flaps, including pedals, induction, pressing the flap or pure manual operation. The induction opening method occupies the vast majority of household trash cans because it is convenient and hygienic. At present, the induction opening structure generally sets a pivot on one side of the flap, and the opening drive mechanism drives the pivot to rotate through a speed reduction mechanism to open and close the lid. Since the pivot is set on one side of the flap, the flap will flip up when opening the lid and will block one side of the delivery port. Considering the opening speed of the flap, the flap area should not be too large. Therefore, the current induction flap trash can has the problems of slow lid opening speed, small garbage delivery port, much higher than the barrel body after the flap is opened, and blocking the garbage delivery port on one side. Summary of the invention

[0003] The purpose of the present invention is to provide a lid opening structure for a trash can. The driving structure of the flip cover has multiple modes, and can adopt one of the modes such as motor drive, manual button or foot pedal. The driving structure is novel and has good reliability. The driving structure is suitable for flip covers of single-cover and double-cover structures. The present invention has the characteristics of reasonable structure and good applicability.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] A lid opening structure for a trash can comprises a trash can body, a base body at the upper end of the trash can body, and a trash inlet is arranged on the base body. The invention is characterized in that: an lid opening structure is arranged at the trash inlet, the lid opening structure comprises a flip cover, a driving device and a transmission mechanism, rotating connecting parts are symmetrically arranged at both ends of the flip cover, the flip cover is pivotally connected to the inner wall of the trash inlet through the rotating connecting parts, the driving device and the transmission mechanism are arranged on the base body, the output end of the driving device is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the free end of the rotating connecting part.

[0006] The driving device includes a driving motor and a control panel. The control panel is arranged on the panel of the base body. The control panel controls the start and stop of the driving motor. The control panel and the driving motor are powered by a power supply or a battery. A rotating part is fixedly connected to the free end of the rotating connection part, and the rotating part is movably connected to the output end of the transmission mechanism.

[0007] The garbage disposal port is rectangular, and the flap is composed of two flaps symmetrically arranged on the left and right. Rotating connection parts are symmetrically arranged at both ends of each flap. One end of the rotating connection part is connected to the end of the flap, and the other end of the rotating connection part extends downward to form a free end. The free end of the rotating connection part is pivotally connected to the inner wall of the rectangular garbage disposal port.

[0008] The rotating part is a crank or a cam; the input end of the crank or the cam is connected to the output end of the transmission mechanism through a connecting rod; or the rotating part is a driving gear, the transmission mechanism is a reduction gear set, and the output end of the reduction gear set is meshed with the driving gear.

[0009] The transmission mechanism includes a guide rod and a driving rod. A guide hole is opened on the driving rod. The guide rod is longitudinally arranged inside the seat body. The driving rod is placed horizontally and is sleeved on the guide rod through the guide hole. The middle part of the guide rod is movably connected to the output end of the driving motor. The driving motor drives the driving rod to reciprocate along the guide rod through the driving member at the output end. The two ends of the driving rod are respectively movably connected to the rotating members on the left and right flaps. The reciprocating motion of the driving rod causes the left and right flaps to rotate in opposite directions through the rotating members.

[0010] The rotating parts on the left and right flaps are cranks or cams, movable grooves are arranged at both ends of the driving rod, and a driving pin is arranged at the input end of the crank or the cam, and the driving pin is accommodated in the movable groove.

[0011] The driving member at the output end of the driving motor is a driving cam or a driving crank. A driving groove is provided in the middle of the driving rod, and the output end of the driving cam or the driving crank is accommodated in the driving groove.

[0012] A pivot is arranged at the rotating connection portion, and the orthographic projection of the pivot on the flap is located in the middle position of the end of the flap; an axial hole is opened at the position of the pivot corresponding to the inner wall of the garbage disposal port, and the distance from the pivot to the top surface of the flap is equal to or close to the distance from the axial hole to the inner wall of the adjacent side of the rectangular garbage disposal port.

[0013] The driving device is a button driving device, which includes a button and a driving block. The driving block is arranged on the seat body through a guide mechanism, the input end of the driving block is connected to the button, and the output end of the driving block is connected to the free end of the rotating connection part through a transmission mechanism.

[0014] The garbage disposal port is rectangular, and the flap is composed of two flaps symmetrically arranged on the left and right. Rotating connection parts are symmetrically arranged at both ends of each flap. One end of the rotating connection part is connected to the end of the flap, and the other end of the rotating connection part extends downward to form a free end. The free end of the rotating connection part is pivotally connected to the inner wall of the rectangular garbage disposal port.

[0015] The free end of the rotating connection part is fixedly connected with a rotating arm, and the input end of the rotating arm is movably connected with the output end of the driving block.

[0016] A reset mechanism and a locking mechanism are arranged between the driving block and the seat body. When the driving block moves from the initial position to the locking position, the locking mechanism locks the driving block. At this time, the driving block opens the flip cover through the rotating arm.

[0017] An unlocking mechanism is arranged between the button and the locking mechanism. After the unlocking mechanism is unlocked, the resetting mechanism pushes the driving block to reset.

[0018] The locking mechanism includes an elastic locking block, a latch tongue and a locking groove are arranged between the elastic locking block and the driving block, a spring is arranged between the elastic locking block and the inner wall of the base body, the spring drives the latch tongue of the elastic locking block to press against the driving block, and the unlocking mechanism includes an unlocking button and an inclined structure that cooperates with the unlocking button and the elastic locking block.

[0019] The locking mechanism is a push-rebound lock arranged between the bottom of the driving block and the bottom wall of the seat body, the lock tongue of the push-rebound lock is arranged at the bottom of the driving block, and the lock seat of the push-rebound lock is arranged on the bottom wall of the seat body.

[0020] The button comprises a cover opening button and a cover closing button, the drive block comprises a cover opening drive block and a cover closing drive block, the cover opening button cooperates with the cover opening drive block, the cover closing button cooperates with the cover closing drive block, the cover opening drive block and the cover closing drive block are both arranged on the base body through a guide mechanism, the rotating arm has two input ends, namely, the cover opening input end and the cover closing input end, and the cover opening input end and the cover closing input end are movably connected with the output ends of the cover opening drive block and the cover closing drive block respectively.

[0021] The cover opening input end and the cover closing input end are symmetrically distributed; a movable groove is opened at the output end of the cover opening drive block or the cover opening input end, and a driving pin is set at the cover opening input end or the output end of the cover opening drive block, and the driving pin is accommodated in the movable groove.

[0022] The reset mechanism comprises a reset spring. A reset hole is provided at the bottom of the driving block. The upper part of the reset spring is accommodated in the reset hole, and the lower end of the reset spring abuts against the bottom wall of the seat body.

[0023] A buffer rod device is also arranged between the button and the driving block; the guiding mechanism comprises a longitudinally arranged guiding rod, a guiding hole is provided on the driving block, and the driving block is arranged on the guiding rod through the guiding hole sleeve.

[0024] The driving device is a foot-operated driving device, which includes a foot pedal, a driving push rod and a driving block. The foot pedal is hinged at the bottom of the barrel body, and the driving block is arranged on the seat body through a guide mechanism. The driving block is connected to the output end of the foot pedal through the driving push rod, and the output end of the driving block is connected to the free end of the rotating connection part through a transmission mechanism.

[0025] The garbage delivery port is rectangular, and the flap is composed of two flaps symmetrically arranged on the left and right. Rotating connection parts are symmetrically arranged at both ends of each flap. One end of the rotating connection part is connected to the end of the flap, and the other end of the rotating connection part extends downward to form a free end. The free end of the rotating connection part is pivotally connected to the inner wall of the rectangular garbage delivery port; the free end of the rotating connection part is fixedly connected to a rotating arm, and two input ends are symmetrically arranged on both sides of the driving block, and the input end of the rotating arm is movably connected to the output end of the driving block.

[0026] The input end of the rotating arm is provided with a movable groove or a driving shaft pin, and the output end of the driving block is provided with a driving shaft pin or a movable groove, and one end of the driving shaft pin is accommodated in the movable groove; or the input end of the rotating arm and the output end of the driving block are movably connected through a connecting rod.

[0027] A return spring is arranged between the driving block and the top wall of the seat body, and the return spring applies a downward force to the driving block; a buffer push rod is arranged between the driving block and the bottom wall of the seat body, and the buffer push rod applies an upward force to the driving block.

[0028] The driving device of the present invention drives the rotating member or the rotating arm to rotate through the driving rod or the driving block, and the opening and closing of the barrel cover are realized by the rotation of the rotating member or the rotating arm. The versatility of the driving and transmission components is very good, and can be coordinated with different driving structures such as motor drive, manual button and foot pedal. The driving rod or the driving block cooperates with the guide rod arranged inside the seat body to realize guidance, and cooperates with the locking mechanism, the reset mechanism and the buffer mechanism to realize the normal flipping and slow lowering closing of the barrel cover; it has the characteristics of novel structure, good reliability and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the electric drive cover opening method of the present invention;

[0030] Figure 2 It is a schematic diagram of the exploded structure of the seat body of the electric drive cover opening method of the present invention;

[0031] Figure 3 The structure diagram of the flip cover, the driving device and the transmission mechanism of the present invention is shown in FIG1 ;

[0032] Figure 4 This is a schematic diagram of the structure of the flip cover, the driving device and the transmission mechanism of the present invention (II);

[0033] Figure 5 This is a schematic diagram of the structure of the present invention using connecting rod transmission;

[0034] Figure 6 This is a schematic diagram of the structure of the present invention using a drive rod transmission;

[0035] Figure 7 This is a schematic diagram of the structure of the driving motor and the driving rod of the present invention (I);

[0036] Figure 8 This is a schematic diagram of the structure of the driving motor and the driving rod of the present invention (II);

[0037] Fig. 9 It is a structural schematic diagram of the seat body of the button opening method of the present invention;

[0038] Fig.10 It is a schematic diagram of the cooperation between the button driving device and the flip cover of the present invention;

[0039] Fig.11 It is a structural schematic diagram of the button driving device of the present invention (I);

[0040] Fig.12 It is a structural schematic diagram of the button driving device of the present invention (II);

[0041] Fig.13 It is a structural schematic diagram of a button driving device with a locking mechanism of the present invention;

[0042] Fig.14 It is a schematic diagram of the side structure of the button driving device with a locking mechanism of the present invention;

[0043] Fig.15 It is a partial structural schematic diagram of a button driving device with a locking mechanism of the present invention;

[0044] Fig.16 It is a structural schematic diagram of another locking mechanism of the present invention (I);

[0045] Fig.17 It is a structural schematic diagram of another locking mechanism of the present invention (II);

[0046] Fig.18 It is a structural schematic diagram of the second button driving device of the present invention (I);

[0047] Fig.19 It is a structural schematic diagram of the second button driving device of the present invention (II);

[0048] Fig. 20 It is a structural schematic diagram of the second button driving device of the present invention (III);

[0049] Fig.21It is a structural schematic diagram of a third button driving device of the present invention;

[0050] Fig. 22 It is a structural schematic diagram of the foot-operated cover opening method of the present invention;

[0051] Fig.23 This is a schematic diagram of the internal structure of the foot-operated cover opening method of the present invention;

[0052] Fig.24 It is a schematic diagram of the cooperation between some driving components and the flip cover of the present invention;

[0053] Fig.25 It is a schematic diagram of the structure of some driving components of the present invention;

[0054] Fig.26 Schematic diagram of the cooperation between the driving component and different transmission components of the present invention (I);

[0055] Fig. 27 Schematic diagram of the cooperation between the driving component of the present invention and different transmission components (II). DETAILED DESCRIPTION

[0056] like Figure 1-27 As shown, a lid opening structure of a trash can comprises a barrel body 1, a seat body 2 is provided at the upper end of the barrel body 1, a trash inlet 21 is arranged on the seat body 2, and an opening structure is arranged at the trash inlet 21, the opening structure comprises a flip cover, a driving device and a transmission mechanism, rotating connecting parts 31 are symmetrically arranged at both ends of the flip cover, the flip cover is pivotally connected to the inner wall of the trash inlet 21 through the rotating connecting part 31, the driving device and the transmission mechanism are arranged on the seat body 2, the output end of the driving device is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the free end of the rotating connecting part 31.

[0057] The garbage inlet 21 is rectangular, and the flap is composed of two flaps 3 symmetrically arranged on the left and right. A rotating connection part 31 is symmetrically arranged at both ends of each flap 3, one end of the rotating connection part 31 is connected to the end of the flap 3, and the other end of the rotating connection part 31 extends downward to form a free end, and the free end of the rotating connection part 31 is pivoted on the inner wall of the rectangular garbage inlet; a pivot 30 is arranged on the rotating connection part 31, and the orthographic projection of the pivot 30 on the flap 3 is located in the middle position of the end of the flap 3; an axial hole 22 is opened on the inner wall of the garbage inlet 21 at the position corresponding to the pivot, and the distance from the pivot to the top surface of the flap is equal to or close to the distance from the axial hole 22 to the inner wall of the adjacent side of the rectangular garbage inlet.

[0058] The seat body 2 includes an outer frame 23, an upper frame 24 and an inner bracket 25. The upper frame 24 extends downward on both sides corresponding to the rotating connection part 31 to form a support plate 26. The shaft hole 22 is arranged on the support plate 26. The upper frame 24 is fixedly connected to the inner bracket 25 below. The outer frame 23 is sleeved on the outer side of the upper frame 24 and the inner bracket 24 and forms a cavity inside the seat body 2. Part of the driving device and the transmission mechanism are accommodated in the cavity.

[0059] like Figure 1-8 As shown, the driving device includes a driving motor 41 and a control panel 42. The control panel 42 is arranged on the panel of the seat body 2. The control panel 42 controls the start and stop of the driving motor 41. The control panel 42 and the driving motor 41 are powered by a power supply or a battery. A rotating part is fixedly connected to the free end of the rotating connection part 31. The rotating part is a crank or a cam 32; the input end of the crank or the cam 32 is connected to the output end of the transmission mechanism through a connecting rod 33; or the rotating part is a driving gear 34, and the transmission mechanism is a reduction gear set 51, and the output end of the reduction gear set 51 is meshed with the driving gear 34.

[0060] During operation, the driving motor drives the driving gear 34 to rotate through the reduction gear set 51. Since the driving gear 34 is fixedly connected to the pivot part of the rotating connection part 31, the rotation of the driving gear 34 drives the flap to flip. A steering gear is provided at one of the output ends of the reduction gear set 51 to achieve opposite rotation directions of the two output ends, thereby achieving the flipping of the left and right flaps in opposite directions. Similarly, the working process of the connection between the crank or cam 32 and the connecting rod 33 is the same and will not be repeated here.

[0061] The above structure adopts the traditional induction triggering, and the driving motor is driven by the gear box to reduce the output. The present invention can also adopt a driving rod or driving block driving method with better versatility. The transmission mechanism includes a guide rod 35 and a driving rod 36. A guide hole is opened on the driving rod 36. The guide rod 35 is longitudinally arranged inside the seat body 2, and the driving rod 36 is placed horizontally and sleeved on the guide rod 35 through the guide hole. The middle part of the guide rod 35 is movably connected to the output end of the driving motor 41. The driving motor 41 drives the driving rod 36 to reciprocate along the guide rod 35 through the driving member at the output end. The ends are respectively movably connected with the rotating parts on the left and right flaps 3. The rotating parts on the left and right flaps 2 are cranks or cams 32. Movable grooves 37 are set at both ends of the driving rod 36. The input end of the crank or cam 32 is provided with a driving pin 321, and the driving pin 321 is accommodated in the movable groove 37; the driving part at the output end of the driving motor 41 is a driving cam or a driving crank 43. A driving groove 361 is set in the middle of the driving rod 36, and the output end of the driving cam or the driving crank 43 is accommodated in the driving groove 361; the reciprocating motion of the driving rod 36 leads the left and right flaps 3 to rotate in opposite directions through the rotating part.

[0062] During operation, the driving motor 41 drives the driving rod 36 to move up and down through the driving cam or the driving crank 43, and the driving rod 36 drives the flap to flip through the crank or cam 32, thereby realizing the opening and closing actions of the cover. This structure has good versatility and can be used in conjunction with driving devices of different structures.

[0063] like Figure 9-21 As shown, in addition to the above-mentioned driving method by the driving motor, the present invention can also be driven by a manual button:

[0064] The driving device is a button driving device, which includes a button 6 and a driving block 7. The driving block 7 is arranged on the base 2 through a guide mechanism. The input end of the driving block 7 is connected to the button 6. The free end of the rotating connection part 31 is fixedly connected to a rotating arm 38. The input end of the rotating arm 38 is movably connected to the output end of the driving block 7.

[0065] A reset mechanism and a locking mechanism 8 are arranged between the driving block 7 and the seat body 2, the reset mechanism includes a reset spring 10, a reset hole is opened at the bottom of the driving block 7, the upper part of the reset spring 10 is accommodated in the reset hole, and the lower end of the reset spring 19 is against the bottom wall of the seat body 2; the locking mechanism 8 includes an elastic locking block 81, a latch tongue 82 and a locking groove 71 are arranged between the elastic locking block 81 and the driving block 7, a spring 83 is arranged between the elastic locking block 81 and the inner wall of the seat body 2, the spring 83 drives the latch tongue 82 on the elastic locking block 82 to rest on the driving block 7, and the unlocking mechanism includes an unlocking button 61, and a slope structure 62 that cooperates with the unlocking button 61 and the elastic locking block 81.

[0066] A buffer rod device 11 is also provided between the button 6 and the driving block 7; the guiding mechanism comprises a longitudinally arranged guiding rod 35, a guiding hole is provided on the driving block 7, and the driving block 7 is arranged on the guiding rod 35 through the guiding hole sleeve.

[0067] When opening the lid, the finger presses the driving block 7, and the driving block moves downward to drive the rotating arm 38 to rotate. The flip cover flips over with the rotating arm and opens the barrel cover. When the driving block 7 moves from the initial position to the locked position, the latch 82 on the elastic locking block 81 is engaged with the locking groove 71 under the action of the spring 83 to lock the driving block 7, ensuring that the flip cover remains in the open state; when closing the lid, press the unlocking button 61, and the unlocking button 61 pushes the elastic locking block 81 to the outside through the inclined structure 62, and the latch 84 disengages from the locking groove 7. The driving block 7 rises under the action of the spring, and at the same time drives the flip cover to reset and close the barrel cover through the rotating arm 38. The present invention is also provided with a buffer rod device 11 between the button 6 and the driving block 7. During the resetting process, the buffer rod device 11 plays a buffering role, and the driving block 7 slowly rises, so that the flip cover slowly closes.

[0068] The present invention can also adopt another type of locking mechanism 8, in which a push-rebound lock is set between the bottom of the driving block 7 and the bottom wall of the seat body 2, and a lock tongue 84 of the push-rebound lock is set at the bottom of the driving block 7, and a lock seat 85 of the push-rebound lock is set on the bottom wall of the seat body 2; when the button is pressed, the button 6 pushes the driving block 7 to compress the reset spring and move downward together, and when the driving block 7 moves downward, the lock seat 85 grabs the lock tongue 84 to fix the driving block 7; when the button is pressed again, the lock seat 85 releases the lock tongue 84, and the driving block 7 automatically resets under the action of the reset spring.

[0069] The above structure adopts a single button structure, and the present invention also adopts a driving structure of double buttons and double drive blocks, the button 6 includes a cover opening button 63 and a cover closing button 64, the drive block 7 includes a cover opening drive block 73 and a cover closing drive block 74, the cover opening button 63 cooperates with the cover opening drive block 73, and the cover closing button 64 cooperates with the cover closing drive block 74, the cover opening drive block 73 and the cover closing drive block 74 are both arranged on the base 2 through a guide mechanism, the rotating arm 38 has two input ends, namely, a cover opening input end 381 and a cover closing input end 382, ​​the cover opening input end 381 and the cover closing input end 382 are respectively movably connected with the output ends of the cover opening drive block 73 and the cover closing drive block 74; the cover opening input end 381 and the cover closing input end 382 are symmetrically distributed; a movable groove is provided on the output end of the cover opening drive block 73 or the cover opening input end 381, and a driving pin is provided at the cover opening input end 381 or the output end of the cover opening drive block 73, and the driving pin is accommodated in the movable groove.

[0070] Since the cover opening input end 381 and the cover closing input end 382 at both ends of the rotating arm 38 are symmetrically distributed, the two groups of buttons and drive blocks are linked when in use. When the cover opening button 63 and the cover opening drive block 73 are pressed down, the cover closing button 64 and the cover closing drive block 74 automatically rise. This structure can eliminate the need for a return spring.

[0071] like Figure 22-27 As shown, the driving device of the present invention can also adopt a foot-operated driving device, and the driving device is a foot-operated driving device, and the foot-operated driving device includes a foot pedal 91, a driving push rod 92 and a driving block 7. The foot pedal 91 is hinged at the bottom of the barrel body 1, and the driving block 7 is arranged on the seat body 2 through a guide mechanism. The driving block 7 is connected to the output end of the foot pedal through the driving push rod 92, and the output end of the driving block 7 is connected to the free end of the rotating connection part through a transmission mechanism.

[0072] The free end of the rotating connection part 31 is fixedly connected with a rotating arm 38. Two input ends are symmetrically arranged on both sides of the driving block. The input end of the rotating arm is movably connected to the output end of the driving block.

[0073] The input end of the rotating arm 38 is provided with a movable groove 37 or a driving shaft pin 39, and the output end of the driving block 7 is provided with a driving shaft pin 39 or a movable groove 37, and one end of the driving shaft pin 39 is accommodated in the movable groove 37; or the input end of the rotating arm 38 and the output end of the driving block 7 are movably connected through a connecting rod 40; a return spring 10 is provided between the driving block 7 and the top wall of the seat body 2, and the return spring 10 applies a downward force to the driving block 7; a buffer top rod 11 is provided between the driving block 7 and the bottom wall of the seat body 2, and the buffer top rod 11 applies an upward force to the driving block.

[0074] The driving method of the foot-operated driving device is similar to that of the button-operated device, except that it lacks a locking mechanism. Its operation process is as follows: when opening the cover, step on the foot pedal 91 with your foot, and the output end of the foot pedal 91 will tilt upward to push the driving push rod 92 upward. The driving push rod 92 will push the driving block 7 upward and compress the reset spring. When the driving block 7 moves upward, the flap 3 is opened synchronously through the rotating arms 38 at both ends; when the foot on the foot pedal 91 is removed, the driving block 7 moves downward under the action of the reset spring, and the buffer push rod 11 will be compressed during the downward movement. The buffer push rod 11 causes the driving block 7 to move downward slowly, thereby causing the flap to close slowly, thereby achieving a buffering effect.

[0075] The driving rod or driving block of the present invention drives the rotating part or the rotating arm to rotate, and then the opening and closing of the barrel cover are realized by the rotation of the rotating part or the rotating arm. The driving and transmission parts have good versatility and can be coordinated with driving structures of different modes such as motor drive, manual button and foot pedal. At the same time, it is equipped with a locking mechanism, a reset mechanism and a buffer mechanism to realize the normal flipping and slow descent closing of the barrel cover, and the use experience is good; at the same time, the present invention adopts a double-cover structure, and the rotating connection part of the double-cover structure is arranged at the two ends of the flap, and the pivot part of the flap is arranged at the free end of the rotating connection part. The positive projection of the pivot part on the flap is located in the middle position of the end of the flap, and the distance from the pivot part to the top surface of the flap matches the distance from the pivot part to the inner wall of the adjacent side of the rectangular garbage delivery port. Since the free end is far away from the flap body, the flap will sink into the garbage delivery port when it is opened to both sides, and the barrel cover will not hit the hands when the garbage is delivered. It has the characteristics of novel structure, reliability and good versatility.

Claims

1. A lid opening structure for a trash can, comprising a trash can body (1), a base body (2) provided at an upper end of the trash can body (1), a trash inlet (21) provided on the base body (2), and characterized in that: An opening structure is provided at the garbage inlet (21), the opening structure comprising a flip cover, a driving device and a transmission mechanism, rotational connection parts (31) are symmetrically provided at both ends of the flip cover, the flip cover is pivotally connected to the inner wall of the garbage inlet (21) via the rotational connection parts (31), the driving device and the transmission mechanism are provided on the base (2), the output end of the driving device is connected to the input end of the transmission mechanism, and the output end of the transmission mechanism is connected to the free end of the rotational connection part (31); The garbage inlet (21) is rectangular, and the flap is composed of two flaps (3) symmetrically arranged on the left and right. Rotary connection parts (31) are symmetrically arranged at both ends of each flap (3). One end of the rotary connection part (31) is connected to the end of the flap (3), and the other end of the rotary connection part (31) extends downward to form a free end. The free end of the rotary connection part (31) is pivotally connected to the inner wall of the rectangular garbage inlet. The pivotal part of the flap is arranged at the free end of the rotating connection part, the orthographic projection of the pivotal part on the flap is located at the middle position of the end of the flap, and the distance from the pivotal part to the top surface of the flap matches the distance from the pivotal part to the inner wall of the adjacent side of the rectangular garbage delivery port; The pivoting portion of the rotating connection portion (31) is a pivot (30), and the orthographic projection of the pivot (30) on the flap (3) is located at the middle position of the end of the flap (3); an axis hole (22) is provided on the inner wall of the garbage delivery opening (21) at a position corresponding to the pivot, and the distance from the pivot to the top surface of the flap is equal to the distance from the axis hole (22) to the inner wall of the adjacent side of the rectangular garbage delivery opening; The driving device is a button driving device, comprising a button (6) and a driving block (7); the driving block (7) is arranged on the base (2) via a guide mechanism; the input end of the driving block (7) is connected to the button (6); the output end of the driving block (7) is connected to the free end of the rotating connection part (31) via a transmission mechanism; the free end of the rotating connection part (31) is fixedly connected to a rotating arm (38); the input end of the rotating arm (38) is movably connected to the output end of the driving block (7); The button (6) comprises a cover opening button (63) and a cover closing button (64); the driving block (7) comprises a cover opening driving block (73) and a cover closing driving block (74); the cover opening button (63) cooperates with the cover opening driving block (73); the cover closing button (64) cooperates with the cover closing driving block (74); the cover opening driving block (73) and the cover closing driving block (74) are both arranged on the base body (2) through a guide mechanism; the rotating arm (38) has two input ends, namely a cover opening input end (381) and a cover closing input end (382); the cover opening input end (381) and the cover closing input end (382) are respectively movably connected to output ends of the cover opening driving block (73) and the cover closing driving block (74); the guiding mechanism comprises a longitudinally arranged guide rod (35); a guide hole is formed on the driving block (7); the driving block (7) is sleeved on the guide rod (35) through the guide hole.

2. The cover opening structure of a trash can according to claim 1, characterized in that: The cover opening input end (381) and the cover closing input end (382) are symmetrically distributed; a movable groove is provided on the output end of the cover opening drive block (73) or the cover opening input end (381); a driving pin is provided on the cover opening input end (381) or the output end of the cover opening drive block (73), and the driving pin is accommodated in the movable groove.

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