阅读说明：本技术 一种垃圾箱密封门启闭装置及垃圾箱 (Dustbin sealing door headstock gear and dustbin ) 是由 赖朝晖 贺艺伟 张福燕 于 2021-10-15 设计创作，主要内容包括：本发明涉及了一种垃圾箱密封门启闭装置,包括密封门、锁紧组件、连接组件以及驱动单元；所述密封门、所述锁紧组件分别铰接在垃圾箱的后方,所述密封门用于对垃圾箱的后门进行密封,所述锁紧组件用于锁紧所述密封门；所述驱动单元的输出端通过所述连接组件分别与所述密封门、所述锁紧组件传动连接,所述驱动单元被设置为通过一个所述驱动单元,用于驱动所述锁紧组件的锁紧以及所述密封门的启闭。区别于现有技术,本发明可以通过一个驱动单元,同时完成密封门启闭和密封门的锁紧组件的锁紧动作,很好地解决了垃圾箱后门和密封门间隙处污水渗漏的问题,结构简单,制造成本较低,操作方便,可控性强,适用于垃圾箱密封门。(The invention relates to a dustbin sealing door opening and closing device, which comprises a sealing door, a locking assembly, a connecting assembly and a driving unit, wherein the sealing door is arranged on the sealing door; the sealing door and the locking assembly are respectively hinged to the rear of the dustbin, the sealing door is used for sealing a rear door of the dustbin, and the locking assembly is used for locking the sealing door; the output end of the driving unit is connected with the sealing door and the locking assembly in a transmission mode through the connecting assembly, the driving unit is arranged to be one in a transmission mode and used for driving the locking assembly to be locked and the sealing door to be opened and closed. Different from the prior art, the invention can simultaneously complete the opening and closing of the sealing door and the locking action of the locking component of the sealing door through one driving unit, well solves the problem of sewage leakage at the gap between the rear door and the sealing door of the garbage can, has simple structure, lower manufacturing cost, convenient operation and strong controllability and is suitable for the sealing door of the garbage can.)

1. The opening and closing device for the sealing door of the garbage can is characterized by comprising a sealing door, a locking assembly, a connecting assembly and a driving unit;

the sealing door and the locking assembly are respectively hinged to the rear of the dustbin, the sealing door is used for sealing a rear door of the dustbin, and the locking assembly is used for locking the sealing door;

the output end of the driving unit is connected with the sealing door and the locking assembly in a transmission mode through the connecting assembly, and the driving unit is arranged to be one in a transmission mode and used for driving the locking assembly to be locked and the sealing door to be opened and closed.

2. The opening and closing device for the sealing door of the garbage can is characterized by comprising a rocker and a swing arm, wherein one end of the rocker is hinged with the garbage can, the other end of the rocker is connected with the sealing door, one end of the swing arm is hinged with the garbage can, the other end of the swing arm is connected with the sealing door, and the sealing door is hinged behind the garbage can through the matching of the rocker and the swing arm.

3. The opening and closing device for the sealing door of the dustbin as claimed in claim 2, wherein a first pin is disposed at an output end of the driving unit, a first sliding slot is disposed on the swing arm, the first pin is mounted in the first sliding slot of the swing arm, and the first pin can move relatively along an extending direction of the first sliding slot.

4. The opening and closing device for the sealing door of the dustbin as claimed in claim 3, wherein the connecting assembly comprises a connecting rod and a combined rod, one end of the connecting rod is hinged to the first pin, the dustbin is provided with a second chute, a second pin capable of moving relatively along the extending direction of the second chute is arranged in the second chute, the other end of the connecting rod is hinged to the second pin, one end of the combined rod is hinged to the second pin, and the other end of the combined rod is connected with the locking assembly.

5. The opening and closing device for the sealing door of the dustbin according to claim 4, wherein one end of the swing arm is hinged with the dustbin through a third pin shaft, the second chute is a long waist hole, and the center of a semicircular circle at the top of the second chute is coaxial with the axis of the third pin shaft.

6. The device as claimed in claim 2, wherein the device comprises a support base, one end of the rocker is hinged to the dustbin through the support base, and the support base is provided with a rubber bump block for limiting the swing arm.

7. The device as claimed in claim 1, wherein the driving unit is a driving cylinder, and a fixed end of the driving cylinder is fixed to the dustbin.

8. The device as claimed in claim 7, wherein the position of the output end of the actuating cylinder includes a first state, a second state and a third state, when the position of the output end of the actuating cylinder is in the first state, the locking assembly locks the sealing door, and the sealing door is closed;

when the position of the output end of the driving oil cylinder is in the second state, the locking assembly releases the sealing door, and the sealing door is closed;

when the position of the output end of the driving oil cylinder is in the third state, the locking assembly releases the sealing door, and the sealing door is opened.

9. The device for opening and closing the sealing door of the dustbin as claimed in claim 1, wherein the locking assembly comprises a hook plate and a locking hook seat, the middle section of the hook plate is hinged to the dustbin through the locking hook seat, the sealing door is provided with a hook pin, and the hook plate is matched with the hook pin to lock or release the sealing door.

10. A waste bin including a bin seal door opening and closing device according to any one of claims 1 to 9.

Technical Field

The invention relates to a garbage disposal device, in particular to a garbage can sealing door opening and closing device and a garbage can.

Background

The existing horizontal garbage compressor pushes garbage into the box body to be extruded after being butted with the matched split type garbage can, and when the garbage can is full of garbage, the compressor gate lifting mechanism pushes the box body material cutting door down to cut off the garbage. After the blank door closed rubbish, the phenomenon is smugglied secretly to the rubbish often can appear in the department of meeting of blank door and back door opening, has the clearance between dustbin back door and the blank door, and leaves ground height lower, and dustbin sewage overflows outside the box in clearance department easily. In order to shield and waterproof seal the joint of the rear door and the blanking door, a sealing door is additionally arranged at the rear door. After the sealing door is closed, a gap exists between the sealing door and the rear door, and sewage in the box body is easy to leak out of the box body through the gap. For satisfying the leakproofness requirement between sealing door and back door, prevent the sewage overflow, compress tightly, lock sealing door with the help of hydraulic power or manpower, current sealing door locking technique often adopts following two kinds of forms:

1) oil cylinder driving locking structure

The structure is that a hydraulic oil cylinder and a connecting arm are arranged on the dustbin, one end of the connecting arm is hinged with an oil cylinder 12, the other end of the connecting arm is fixedly connected with a sealing door 4, and a sealing rubber strip 5 is arranged on the joint surface of the sealing door 4 and the dustbin body 1, as shown in figure 1. The connecting arm is provided with a hinge point, and the hinge point is provided with a pin shaft which can slide in a chute on the box body. The oil cylinder drives the connecting arm to enable the sealing door to translate and rotate, and the sealing door is opened and closed. After the sealing door is closed, the oil cylinder contracts to tightly press the sealing rubber strip at the sealing door, so that garbage scattering and sewage leakage are eliminated. Although the structure can realize the pressing force on the sealing rubber strip, the hydraulic oil cylinder has the problem of internal leakage, so that the sealing door and the garbage can cannot be always kept in a tight sealing state, the pressing force is loosened due to the vibration of the box body in the transportation process, the sealing performance of the sealing door cannot be completely guaranteed, and sewage leakage is caused.

2) Manual locking structure

The left side of the airtight door is hinged on a rear door 2 of the dustbin, and the vertical beam on the right side is provided with two shaft sleeves which are fixed up and down, as shown in figure 2. The handle is formed by bending a hollow pipe by 90 degrees, and the un-bent part of the hollow pipe can be used as a rotating shaft. The rotating shaft is arranged in a shaft sleeve on the right side of the airtight door 4, a lock hook is fixed on the upper part and the lower part of the rotating shaft, and the lock hook is matched with a lock plate 40 fixed on the rear door 2. The handle 30 can rotate freely in the horizontal plane around the axle center of the shaft sleeve, and a person can hold the tail end of the handle by hand and drag the handle to rotate. When the airtight door needs to be locked, the handle end can be held by a hand, the handle is rotated to be parallel to the rear door, the locking contact surface of the lock hook is rotated to be parallel to the rear door along with the handle and is contacted and attached tightly with the matching surface of the lock plate, then the handle is constrained and limited on the limiting seat fixed on the rear door by the bolt, and the handle is held by the hand when rotating around the shaft and the lever effect at the lock hook is utilized to compress the sealing rubber strip between the rear door and the airtight door to realize waterproof sealing. When the sealed door needs to be opened, the plug pin is only required to be pulled out, and the sealed door can be opened by loosening the handle. The structure is operated by hands, the requirement on the precision of the installation and positioning size is high, the uniformity of the sealing rubber strip compression cannot be guaranteed by single-side locking, the size of the pressing force cannot be adjusted, and the use and the maintenance are inconvenient.

More information about the above solution can also be found in the following documents:

the first cylinder-driven lock structure described above is disclosed in patent publication No. CN 205708299U.

In the patent with patent publication No. CN101628655A, a dustbin back door headstock gear is disclosed, specifically discloses dustbin back door headstock gear, including the carriage, the carriage rear end is equipped with the back door frame, installs the back door with the back door frame cooperation, be equipped with sealed the pad on the back door frame with the fitting surface of back door, rotationally be connected through connecting pin between back door upper portion and the carriage, back door upper portion both sides are to the back, the downward sloping is equipped with the straight flute, connecting pin inserts in the straight flute, the carriage both sides articulate respectively has two-way hydraulic cylinder, two-way hydraulic cylinder's piston rod extension end is articulated with the long arm end portion of a locking arm that is L shape, and the short arm of locking arm inserts between the spacing round pin axle that closes the door that sets up on the back door and the spacing round pin axle that opens the door, and the middle part of locking arm is articulated mutually with the back door frame.

In the process of implementing the invention, the inventor finds that the following problems exist in the prior art:

the existing dustbin sealing door is locked by a driving oil cylinder fixed on the dustbin, but the hydraulic oil cylinder has the problem of internal leakage, so that the sealing door and the dustbin cannot be always kept in a tight sealing state, the vibration of the dustbin body during transportation can also cause the loosening of pressing force, the sealing performance of the sealing door cannot be completely guaranteed, and sewage in the dustbin can still flow out from the gap between the sealing door and the dustbin, so that secondary pollution is caused. The manual opening and closing locking device of the sealing door is operated by hands, the requirement on the precision of the installation positioning size is high, the uniformity of the sealing rubber strip compression cannot be guaranteed by single-side locking, the size of the pressing force cannot be adjusted, and the sealing door is inconvenient to use and maintain.

In the prior art, the automatic fixing of the sealing door cannot be realized, and the opening and closing of the sealing door and the locking action of a locking component of the sealing door cannot be driven by a single driving unit.

Disclosure of Invention

Therefore, the opening and closing device for the sealing door of the garbage can and the garbage can are needed to be provided, and the problem that in the prior art, the sealing door cannot be automatically fixed, and the sealing door cannot be driven to open and close through a single driving unit and the locking action of the locking assembly is solved.

In order to achieve the aim, the inventor provides a dustbin sealing door opening and closing device, which comprises a sealing door, a locking assembly, a connecting assembly and a driving unit;

the sealing door and the locking assembly are respectively hinged to the rear of the dustbin, the sealing door is used for sealing a rear door of the dustbin, and the locking assembly is used for locking the sealing door;

the output end of the driving unit is connected with the sealing door and the locking assembly in a transmission mode through the connecting assembly, and the driving unit is arranged to be one in a transmission mode and used for driving the locking assembly to be locked and the sealing door to be opened and closed.

Be different from prior art, above-mentioned technical scheme is used for locking through locking Assembly sealing door, drive unit's output passes through coupling assembling respectively with sealing door locking Assembly transmission is connected, drive unit is set up to be through one drive unit is used for the drive locking Assembly's locking and sealing door open and close. So, can accomplish simultaneously sealing door opening and closing and sealing door's locking Assembly's locking action through a drive unit, locking Assembly can lock sealing door, has solved the problem of dustbin back door and sealing door clearance department sewage seepage well, and this device simple structure, manufacturing cost is lower, convenient operation, the controllability is strong, is applicable to the dustbin sealing door.

As an embodiment of the invention, the opening and closing device of the dustbin sealing door comprises a rocker and a swing arm, one end of the rocker is hinged with the dustbin, the other end of the rocker is connected with the sealing door, one end of the swing arm is hinged with the dustbin, the other end of the swing arm is connected with the sealing door, and the sealing door is hinged behind the dustbin through the cooperation of the rocker and the swing arm.

So, through rocker, swing arm, sealing door, dustbin box, constitute four-bar linkage, can realize the stable switch of sealing door, improve sealing door connection, pivoted stability.

As an embodiment of the present invention, a first pin is disposed on an output end of the driving unit, a first sliding slot is disposed on the swing arm, the first pin is mounted in the first sliding slot of the swing arm, and the first pin can move relatively along an extending direction of the first sliding slot.

So, through the cooperation of first round pin axle and first spout, realize that drive unit's output and swing arm transmission are connected, and drive unit's output can follow the extending direction relative movement of first spout, makes drive unit when drive locking Assembly, can not interfere the swing arm.

As an embodiment of the present invention, the connecting assembly includes a connecting rod and a combined rod, one end of the connecting rod is hinged to the first pin, the dustbin is provided with a second chute, the second chute is provided with a second pin capable of moving relatively along an extending direction of the second chute, the other end of the connecting rod is hinged to the second pin, one end of the combined rod is also hinged to the second pin, and the other end of the combined rod is connected to the locking assembly.

So, through the cooperation of connecting rod, second round pin axle, combination bar, can realize that drive unit's output and locking Assembly's transmission are connected, drive unit can drive locking Assembly's locking and unclamping through connecting rod, combination bar.

As an embodiment of the invention, one end of the swing arm is hinged to the dustbin through a third pin shaft, the second chute is a long waist hole, and the center of a top semicircle of the second chute is coaxial with the axis of the third pin shaft.

Therefore, the third pin shaft and the top semicircular central axis of the second chute are coaxial, and synchronous rotating motion of the connecting rod and the swing arm in the opening and closing process of the sealing door is guaranteed.

As an implementation manner of the invention, the opening and closing device of the dustbin sealing door comprises a supporting seat, one end of the rocker is hinged with the dustbin through the supporting seat, and a rubber collision block is arranged on the supporting seat and used for limiting the swing arm.

So, can hit the piece through rubber and carry on spacingly to the swing arm, prevent that the swing arm from surpassing the stroke.

As an embodiment of the present invention, the driving unit is a driving cylinder, and a fixed end of the driving cylinder is fixed to the dustbin.

Therefore, the single oil cylinders symmetrically arranged on the two sides of the garbage can complete the coherent action of driving the opening and closing and locking of the sealing door within a stroke range, and the sequential action requirements that the sealing door is unlocked firstly and then opened in the opening process and is closed firstly and then locked in the closing process can be met.

As an embodiment of the present invention, the position of the output end of the driving oil cylinder includes a first state, a second state and a third state, when the position of the output end of the driving oil cylinder is in the first state, the locking assembly locks the sealing door, and the sealing door is closed;

when the position of the output end of the driving oil cylinder is in the second state, the locking assembly releases the sealing door, and the sealing door is closed;

when the position of the output end of the driving oil cylinder is in the third state, the locking assembly releases the sealing door, and the sealing door is opened.

So, can realize locking assembly through actuating cylinder, the sealing door is closed, loosens the sealing door to locking assembly, and the sealing door is opened, simple structure, and manufacturing cost is lower, convenient operation.

As an embodiment of the present invention, the locking assembly includes a hook plate and a hook seat, the middle section of the hook plate is hinged to the dustbin through the hook seat, the sealing door is provided with a hook pin, and the hook plate is matched with the hook pin to lock or release the sealing door.

So, through the cooperation of hook plate with the hook pin, realize locking or loosen sealing door, convenient operation.

In order to achieve the above object, the inventor also provides a dustbin, which comprises the opening and closing device for the dustbin sealing door provided by any one of the inventor.

Be different from prior art, above-mentioned dustbin can accomplish simultaneously sealing door opening and closing and sealing door's locking Assembly's locking action through a drive unit, and locking Assembly can lock sealing door, has solved the problem of dustbin back door and sealing door clearance department sewage seepage well, and this device simple structure, manufacturing cost is lower, convenient operation, and the controllability is strong, is applicable to the dustbin sealing door.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

FIG. 1 is a schematic structural view of a cylinder driven locking structure in the background art;

FIG. 2 is a schematic structural view of a manual locking structure described in the background art;

FIG. 3 is a schematic structural diagram of an opening and closing device of a sealing door of a garbage can according to an embodiment of the present application;

FIG. 4 is an enlarged partial view of a connecting rod according to one embodiment of the present application;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

FIG. 6 is a schematic view illustrating an unlocked state of a sealing door of the opening and closing device of the dustbin sealing door according to an embodiment of the present application;

FIG. 7 is a first view illustrating a state of use of the opening and closing device for the sealing door of the trash can according to an embodiment of the present disclosure;

FIG. 8 is a second view illustrating the operation of the opening and closing device of the sealing door of the dustbin according to an embodiment of the present invention;

fig. 9 is a third state view illustrating a state of use of the opening and closing device for the sealing door of the trash can according to an embodiment of the present application.

Description of reference numerals:

1. a dustbin body;

2. a rear door;

3. a rocker;

4. a sealing door;

5. sealing rubber strips;

6. swinging arms;

7. a hook pin;

8. a hook plate;

9. a latch hook seat;

10. a threaded sleeve;

11. a combination rod;

12. an oil cylinder;

13. a first pin shaft;

14. a first chute;

15. a connecting rod;

16. a second pin shaft;

17. a second chute;

18. a third pin shaft;

19. a rubber bump;

20. a supporting seat;

30. a handle;

40. and (6) locking the plate.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

The existing dustbin sealing door is locked by a driving oil cylinder fixed on the dustbin, but the hydraulic oil cylinder has the problem of internal leakage, so that the sealing door and the dustbin cannot be always kept in a tight sealing state, the vibration of the dustbin body during transportation can also cause the loosening of pressing force, the sealing performance of the sealing door cannot be completely guaranteed, and sewage in the dustbin can still flow out from the gap between the sealing door and the dustbin, so that secondary pollution is caused. The manual opening and closing locking device of the sealing door is operated by hands, the requirement on the precision of the installation positioning size is high, the uniformity of the sealing rubber strip compression cannot be guaranteed by single-side locking, the size of the pressing force cannot be adjusted, and the sealing door is inconvenient to use and maintain.

In the prior art, the automatic fixing of the sealing door cannot be realized, and the opening and closing of the sealing door and the locking action of a locking component of the sealing door cannot be driven by a single driving unit.

Referring to fig. 3 to 9, the opening and closing device for the sealing door of the trash bin of the present embodiment includes a sealing door 4, a locking assembly, a connecting assembly, and a driving unit; the sealing door 4 and the locking assembly are respectively hinged to the rear of the dustbin, the sealing door 4 is used for sealing the rear door 2 of the dustbin, and the locking assembly is used for locking the sealing door 4; the output end of the driving unit is in transmission connection with the sealing door 4 and the locking assembly through the connecting assembly, and the driving unit is arranged to be used for driving the locking assembly to be locked and the sealing door 4 to be opened and closed through one driving unit.

So, be used for locking sealing door 4 through locking Assembly, drive unit's output passes through coupling assembling and is connected with sealing door 4, locking Assembly transmission respectively, and drive unit is set up to be through a drive unit for the locking of drive locking Assembly and the opening and close of sealing door 4. So, can accomplish simultaneously sealing door 4 and open and close and sealing door 4's locking Assembly's locking action through a drive unit, locking Assembly can lock sealing door 4, has solved the problem of dustbin back door 2 and 4 clearance departments sewage seepage in sealing door well, and this device simple structure, manufacturing cost is lower, convenient operation, and the controllability is strong, is applicable to dustbin sealing door 4.

It should be noted that, in this embodiment, the specific structure of the driving unit is not limited, and the driving unit may be an oil cylinder 12, an air cylinder, an electric cylinder, or another specific driving source, and as long as the sealing door 4 can be driven to open and close and the locking assembly of the sealing door 4 can be locked by one driving unit, both are within the protection scope of this embodiment. In this embodiment, the two sides of the garbage bin are provided with a driving unit.

In some embodiments, the opening and closing device for the dustbin sealing door 4 comprises a rocker 3 and a swing arm 6, one end of the rocker 3 is hinged to the dustbin, the other end of the rocker 3 is connected with the sealing door 4, one end of the swing arm 6 is hinged to the dustbin, the other end of the swing arm 6 is connected with the sealing door 4, and the sealing door 4 is hinged to the rear of the dustbin through the matching of the rocker 3 and the swing arm 6. So, through rocker 3, swing arm 6, sealing door 4, dustbin box 1, constitute four-bar linkage, can realize sealing door 4's stable switch, improve sealing door 4 and connect, pivoted stability.

In this embodiment, the dustbin body 1 and the rear door 2 are hinged at the top, and the rear end of the rocker 3 is hinged at the upper end of the sealing door 4. Sealing rubber strip 5 is equipped with between sealing door 4 and back door 2, and swing arm 6 front end is articulated on the box, and the rear end is articulated at the lower extreme of sealing door 4, and when swing arm 6 and rocker 3 descend to target in place, sealing door 4 compresses tightly sealing rubber strip 5 on 2 frames of back door.

In some embodiments, a first pin 13 is disposed on the output end of the driving unit, a first sliding slot 14 is disposed on the swing arm 6, the first pin 13 is mounted in the first sliding slot 14 of the swing arm 6, and the first pin 13 can move relatively along the extending direction of the first sliding slot 14. So, through the cooperation of first round pin axle 13 with first spout 14, realize that drive unit's output and swing arm 6 transmission are connected, and drive unit's output can follow the extending direction relative movement of first spout 14, makes drive unit when drive locking Assembly, can not interfere swing arm 6.

In some embodiments, the connecting assembly includes a connecting rod 15 and a combination rod 11, one end of the connecting rod 15 is hinged to the first pin 13, a second chute 17 is disposed on the dustbin, a second pin 16 capable of moving relatively along the extending direction of the second chute 17 is disposed in the second chute 17, the other end of the connecting rod 15 is hinged to the second pin 16, one end of the combination rod 11 is also hinged to the second pin 16, and the other end of the combination rod 11 is connected to the locking assembly. Therefore, the output end of the driving unit can be in transmission connection with the locking assembly through the matching of the connecting rod 15, the second pin shaft 16 and the combined rod 11, and the driving unit can drive the locking assembly to be locked and unlocked through the connecting rod 15 and the combined rod 11.

In some embodiments, one end of the swing arm 6 is hinged to the dustbin through a third pin 18, the second chute 17 is a long waist hole, and the center of the top semicircle of the second chute 17 is coaxial with the axis of the third pin 18. Therefore, the third pin shaft 18 and the top semicircular central axis of the second chute 17 are coaxial, and synchronous rotating motion of the connecting rod 15 and the swing arm 6 in the opening and closing process of the sealing door 4 is guaranteed.

In some embodiments, the opening and closing device for the sealing door of the dustbin comprises a supporting seat 20, one end of the rocker 3 is hinged with the dustbin through the supporting seat 20, a rubber collision block 19 is arranged on the supporting seat 20, and the rubber collision block 19 is used for limiting the swing arm 6. Therefore, the swing arm 6 can be limited through the rubber bump block 19, and the swing arm 6 is prevented from exceeding the stroke.

In some embodiments, the driving unit is a driving cylinder 12, and the fixed end of the driving cylinder 12 is fixed on the garbage can. Therefore, the single oil cylinders 12 symmetrically arranged on the two sides of the garbage can complete the coherent action of driving the opening and closing and locking of the sealing door 4 within a stroke range, and the sequential action requirements of firstly unlocking and then opening the sealing door 4 in the opening process and firstly closing and then locking the sealing door in the closing process can be met.

In this embodiment, the upper end of the oil cylinder 12 is provided with a first pin 13, the first pin 13 is installed in a first chute 14 of the swing arm 6, and after the swing arm 6 descends to a proper position, the long side of the first chute 14 is parallel to the axis of the oil cylinder 12. The hinge point of the lower end of the connecting rod 15 is arranged on the first hinge pin 13, the hinge point of the upper end is arranged on the second hinge pin 16 together with the hinge point of the upper end of the combined rod 11, the second hinge pin 16 is arranged in a second chute 17 fixed on the dustbin body 1, and the long edge directions of the first chute 14 and the second chute 17 are parallel to each other. A third pin shaft 18 is arranged at the hinged point of the front end of the swing arm 6 and the dustbin body 1, and the center of a semicircle at the top of the second chute 17 is coaxial with the axis of the third pin shaft 18. The rubber bump 19 is arranged on a supporting seat 20 fixed on the dustbin body 1, and the front end of the rocker 3 is hinged on the supporting seat 20.

In some embodiments, the position of the output end of the driving cylinder 12 includes a first state, a second state and a third state, when the position of the output end of the driving cylinder 12 is in the first state, the locking assembly locks the sealing door 4, and the sealing door 4 is closed;

when the position of the output end of the driving oil cylinder 12 is in the second state, the locking assembly releases the sealing door 4, and the sealing door 4 is closed;

when the position of the output end of the driving oil cylinder 12 is in the third state, the locking assembly releases the sealing door 4, and the sealing door 4 is opened.

So, can realize locking assembly through actuating cylinder 12 and lock, sealing door 4 closes, loosens sealing door 4 to locking assembly, and sealing door 4 opens, simple structure, and manufacturing cost is lower, convenient operation.

In some embodiments, the locking assembly comprises a hook plate 8 and a hook seat 9, the middle section of the hook plate 8 is hinged on the dustbin through the hook seat 9, the sealing door 4 is provided with a hook pin 7, and the hook plate 8 is used for locking or unlocking the sealing door 4 by being matched with the hook pin 7. Therefore, the sealing door 4 is locked or loosened through the matching of the hook plate 8 and the hook pin 7, and the operation is convenient.

In this embodiment, the bottom of the sealing door 4 is fixed with a hook pin 7, which is hooked and locked by a hook plate 8, the middle position of the hook plate 8 is hinged on a lock hook seat 9, and the front end is hinged on a combined rod 11 with a threaded sleeve 10. The positions of the lock hook seat 9 and the hook pin 7 are similar to the same horizontal line, after the hook plate 8 is locked, the hook pin 7 acts on the hook plate 8, the horizontal backward pulling force direction is close to the lock hook seat 9, the pulling force is basically balanced by the counterforce of the dustbin body 1, and the locking is more reliable. The vertical distance of pin joint about rotatory thread bush 10 adjustable combination pole 11 to the locking dynamics of adjustment hook plate 8 to hook pin 7, sealing door 4 compresses tightly the degree to joint strip 5 promptly.

Dustbin sealing door unblock schematic diagram is shown in fig. 6, and drive cylinder 12 upwards stretches out, and because of cylinder 12 axis is parallel with the length direction of first spout 14, first round pin axle 13 is along the vertical upwards slip of first spout 14 to drive connecting rod 15 lower extreme pin joint upward movement, because of the length direction of first spout 14 and second spout 17 is parallel to each other, connecting rod 15 upper end pin joint and the synchronous upward movement of lower extreme pin joint, connecting rod 15 is the translation upwards promptly. The second pin 16 moves upward along with the connecting rod 15 and drives the combined rod 11 to move upward, the combined rod 11 pulls up the front end of the hook plate 8, the hook plate 8 rotates around the hinge point at the position of the lock hook seat 9 and is separated from the hook pin 7 until the first pin 13 moves to the upper end point of the first sliding groove 14, and the hook plate 8 is completely unlocked. Because the first pin shaft 13 arranged at the top of the oil cylinder 12 only moves in the first sliding groove 14 of the swing arm 6, the swing arm 6 and the sealing door 4 do not move.

In this embodiment, the swing arm 6, the rocker 3, the sealing door 4 and the dustbin body 1 form a four-bar linkage, when the oil cylinder 12 continues to extend, the first pin 13 supports the swing arm 6 upward, and the swing arm 6 rotates around the third pin 18, and drives the sealing door 4 to open upward together with the rocker 3. The center of the top semicircle of the second chute 17 is coaxial with the axis of the third pin 18, at this time, the second pin 16 is coaxial with the third pin, and the connecting rod 15 and the swing arm 6 rotate synchronously. Because the position of the second pin shaft 16 is not changed any more, the combination rod 11 does not move, and the position of the hook plate 8 is not changed in the opening process of the sealing door 4.

As shown in fig. 7 to 9, which are schematic views of the opening process of the sealing door 4, when the sealing door 4 moves to fig. 7 and the connecting rod 15 is just in a horizontal state, the longitudinal direction of the first sliding chute 14 is inclined downward from front to back, and the first pin 13 is located at the front end of the first sliding chute 14 under the upward supporting force of the oil cylinder 12 and cannot slide in the first sliding chute 14.

When the sealing door 4 moves to the position shown in fig. 8, and the length direction of the first sliding groove 14 is just in the horizontal state, the connecting rod 15 is inclined upwards from front to back, and in the process that the sealing door 4 is continuously opened afterwards, the connecting rod 15 pulls the first pin 13, so that the first pin 13 is limited to slide upwards in the first sliding groove 14, and the first pin 13 is always located at the front end of the first sliding groove 14. The limiting effect of the connecting rod 15 on the first pin 13 ensures that the opening process of the sealing door 4 is stable and smooth under the driving of the oil cylinder 12.

After the oil cylinder 12 is extended to the right position, as shown in fig. 9, the top surface of the swing arm 6 just contacts with the top surface of the rubber bump 19, and the sealing door 4 is completely opened. The rubber bump block 19 is arranged on the supporting seat 20 and used for limiting and buffering the swing arm 6 and reducing the impact force of the swing arm 6, so that the sealing door 4 is kept stable under the interaction of the supporting force of the oil cylinder 12 and the counter force of the rubber bump block 19 after being opened.

On the contrary, the oil cylinder 12 can realize descending closing and locking of the sealing door 4 after being retracted, and the closing and locking process is opposite to the unlocking and opening process.

The embodiment also relates to a dustbin which comprises the dustbin sealing door opening and closing device.

To sum up, the single hydro-cylinder of dustbin bilateral symmetry arrangement can accomplish the coherent action that the drive sealing door opened and close and lock in a stroke within range, and it is firm to go up the hook plate locking, and locking elasticity degree is adjustable, has solved the problem of dustbin back door 2 and 4 clearance department sewage seepage of sealing door well, and this device simple structure, manufacturing cost is lower, convenient operation, the controllability is strong, is applicable to dustbin sealing door 4.

It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.