Garbage can and garbage bag closing and sealing mechanism therefor

Abstract

Provided are a garbage can and a garbage bag closing and sealing mechanism therefor. The garbage bag closing and sealing mechanism comprises a base plate (1), bag opening closure rods (501, 502), hot pressing rods (601, 602), a winch motor (4), a reel (401), and a pull wire (3). One part of the pull wire (3) is wound on the reel (401), and the other part of the pull wire (3) is tensioned on the base plate (1) by means of a pulley (2). The bag opening closure rods (501, 502) and the hot pressing rods (601, 602) are respectively fixed on the pull wire (3), and the winch motor (4) drives the reel (401) to rotate forwards and backwards, so that the bag opening closure rods (501, 502) and the hot pressing rods (601, 602) are driven to move respectively by means of the pull wire (3). In this way, the garbage bag closing and sealing mechanism uses the winch motor (4) and the pull wire (3) to drive the bag opening closure rods (501, 502) and the hot pressing rods (601, 602) to move.

Description

Garbage bin and garbage bag closing and sealing mechanism Technical Field

[0001] The invention belongs to a garbage bag closing and sealing mechanism for an automatic garbage bin. Background Art

[0002] Throwing out trash is a frequent activity in people's lives. Repetitive tasks like bagging and changing bags are becoming increasingly tedious and tiresome for modern people living in a fast-paced lifestyle. Therefore, there is a demand for trash cans that can automatically bag, seal, and change bags. Numerous designs for automated trash cans with these capabilities have been proposed.

[0003] Because the ring-shaped plastic film tubes have a built-in opening, they facilitate automatic bag feeding and have been adopted by some inventors. These automatic trash cans typically include a trash bag storage device with a flap at the top, a trash bag sealing device at the bottom, and the main body of the trash can below the sealing device. Furthermore, there is a bag feeding device, located at the corresponding position of the trash can according to the different bag feeding methods.

[0004] The aforementioned ring-shaped plastic film tube is a long tube or cylinder of plastic film, typically several to several dozen meters long, packaged in a ring-shaped or ring-like packaging box. One end of the tube is pulled out of the box's circumferential opening and sealed, forming the bottom of the first garbage bag. The inner hole of the ring-shaped packaging box serves as the garbage inlet. Each time the garbage bag is packed and sealed, a garbage bag sealing device closes the bag opening and performs a heat-melt severing operation. This severing process creates two seals: the lower seal for the already filled old garbage bag, and the upper seal for the new, soon-to-be-used garbage bag. After the user removes the old garbage bag, the bag feeder automatically places a new one.

[0005] This type of automatic trash can requires the plastic film of the trash bags to be gathered and hot-melt-sealed on-site inside the trash can. This function is performed by a closing and sealing device. This closing and sealing device is a key component of the fully automatic trash can, determining whether the basic functions of sealing and cutting the old trash bags and sealing the bottom of the new trash bags can be performed stably and reliably.

[0006] Currently, a variety of designs for closing and sealing devices have been published and announced. The most common one features a pair of horizontal bars that can move relative to and close together in the X-direction to gather the garbage bag to a certain distance in the X-direction. Another pair of horizontal bars that can move relative to and close together in the Y-direction, orthogonal to the X-direction, gather and compress the garbage bag in the Y-direction. One Y-direction horizontal bar is equipped with a heating wire, and the other Y-direction horizontal bar is equipped with an elastic body. When the two Y-direction horizontal bars compress the garbage bag's plastic film, the heating wire is energized to heat-melt the film, sealing it and cutting it. This structure gathers the garbage bag's plastic film to the middle of the trash can's opening. Four horizontal bars require linear motion, and the Y-direction horizontal bars require relatively high rigidity. Consequently, the structure is complex, bulky, and costly.

[0007] A simplified version of this structure has also emerged on the market. Specifically, a single horizontal bar is provided in the X direction, which is moved to gather the garbage bags to one side of the trash can in the X direction. A single horizontal bar is also provided in the Y direction, which is moved to press against a fixed bar on the other side of the trash can in the Y direction, achieving both bag gathering and heat fusing. This structure gathers the plastic film of the garbage bags to a corner of the trash can opening, is relatively simple, and is compact.

[0008] The aforementioned closing and sealing mechanisms, as well as other closing and sealing solutions, inevitably utilize synchronous belts and positioning rails. These rails are typically stainless steel or galvanized steel shafts. A single closing and sealing mechanism utilizes multiple synchronous belts and steel shafts, resulting in high costs and hindering the overall cost reduction of the automatic trash can. Technical issues

[0009] In order to solve the above technical problems, the purpose of the present invention is to provide a trash can and its trash bag closing and sealing mechanism, which does not use multiple synchronous belts and synchronous pulleys, does not use or reduces the use of track rods, and has the characteristics of simple structure, compact size and low cost. Technical Solutions

[0010] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0011] A garbage bag closing and sealing mechanism, comprising:

[0012] The through-hole area in the middle of the substrate is the garbage input channel;

[0013] A bag-closing rod for closing the mouth of a garbage bag;

[0014] Heat-pressed rods for hot-melt sealing of garbage bags;

[0015] Also includes:

[0016] A winch motor, wherein a stranding wheel is fixed on the output shaft of the winch motor;

[0017] Pull wire, part of the pull wire is wound on the twisting wheel, and the other part of the pull wire is tensioned and set on the base plate through the pulley; the bag gathering rod and the hot pressing rod are respectively fixed on the pull wire, and the winch motor drives the twisting wheel to rotate forward and reverse, thereby driving the bag gathering rod and the hot pressing rod to move respectively through the pull wire.

[0018] Preferably, the pull wire is connected at both ends to form a closed loop, and the pull wire is fixedly connected to the winding wheel.

[0019] Preferably, the first end of the pull wire is directly fixed on the winding wheel, and the second end of the pull wire is fixed on the winding wheel after being pre-wound several times on the winding wheel; when the hoisting motor rotates forward, the first end of the pull wire is gradually wound onto the winding wheel, and the second end of the pull wire is gradually released from the winding wheel; when the hoisting motor rotates reversely, the first end of the pull wire wound onto the winding wheel is gradually released again, and the second end of the pull wire is gradually wound onto the winding wheel again. In this way, as the hoisting motor rotates, the pull wire will make a straight line motion forward or backward along the boundary direction of the through-hole area. Both ends of a pull wire are on the winding wheel. As the hoisting motor rotates, part of the pull wire must move forward and part must move backward.

[0020] Preferably, the through-hole area of ​​the substrate is square or rectangular, and the pull wire forms a closed loop after winding around these pulleys and the winding wheel. Pulleys for winding the pull wire are provided at the four corners of the through-hole area of ​​the substrate. The ends of the bag-gathering rod are fixed to the portion of the pull wire that moves in the X direction, and the ends of the hot-pressing rod are fixed to the portion of the pull wire that moves in the Y direction. In this way, the bag-gathering rod can be arranged in the X direction, and the hot-pressing rod can be arranged in the Y direction. The ends of the bag-gathering rod are fixed to the portion of the pull wire that moves in the X direction, and the ends of the hot-pressing rod are fixed to the portion of the pull wire that moves in the Y direction. As the hoisting motor rotates, the bag-gathering rod and the hot-pressing rod can move linearly in their respective directions.

[0021] Preferably, the through-hole area of ​​the substrate is square or rectangular, and the pulling wire forms a closed loop after winding around these pulleys and the twisting wheel; pulleys for winding the pulling wire are provided at the three corners of the through-hole area of ​​the substrate, one end of the bag gathering rod is fixed on the part of the pulling wire that moves along the X direction, and one end of the hot pressing rod is fixed on the part of the pulling wire that moves along the Y direction, and two track rods are provided on the substrate for guiding the movement of the bag gathering rod and the hot pressing rod respectively.

[0022] Preferably, it includes two heat pressing rods and two bag gathering rods; the two bag gathering rods are driven by a pull wire to move toward each other, and the garbage bag is gathered to the middle position of the barrel mouth; the two heat pressing rods are driven by a pull wire to move toward each other, and cooperate with the bag gathering rods to gather the garbage bag to the middle position of the barrel mouth; one of the heat pressing rods is provided with an electric heating wire, and the other heat pressing rod is provided with an elastomer, and the two heat pressing rods heat-seal and cut the garbage bag at the closing part.

[0023] Preferably, it includes a hot pressing rod and a bag gathering rod; the bag gathering rod is driven by a pull wire to gather the garbage bag to the side of the barrel mouth; at the same time, the hot pressing rod is driven by the pull wire to cooperate with the bag gathering rod to gather the garbage bag to a corner of the barrel mouth; the base plate is provided with an electric heating rod at a position corresponding to the hot pressing rod, the electric heating rod is provided with an electric heating wire, and the hot pressing rod is provided with an elastomer; the elastomer and the electric heating wire are pressed tightly to heat-seal and cut the garbage bag at the closing part.

[0024] Preferably, it includes a hot pressing rod and two bag gathering rods; the two bag gathering rods are driven by a pull wire to move toward each other, so as to gather the garbage bag to the middle position of the barrel mouth; the base plate is provided with an electric heating rod at a position corresponding to the hot pressing rod, the electric heating rod is provided with an electric heating wire, and the hot pressing rod is provided with an elastic body; the pull wire drives the hot pressing rod to move to the position of the electric heating rod, thereby pressing the gathered garbage bag tightly against the heating wire on the electric heating rod, thereby completing the heat sealing and cutting of the garbage bag.

[0025] Each point on the same pull line moves at the same speed and distance. This requires that the bag-gathering rod and the hot-pressing rod must move the same distance. Therefore, the barrel mouth needs to be square. If there are two bag-gathering rods, the distance they can move is half the side length of the square. Furthermore, two hot-pressing rods must also be provided, so the distance the hot-pressing rod moves is also half the side length of the square. If there is only one bag-gathering rod, the distance it can move is the side length of the square. Furthermore, one hot-pressing rod must also be provided, so the distance the hot-pressing rod moves is also the side length of the square.

[0026] If the barrel mouth is not square, the barrel mouth can be designed as a rectangle with the long side twice the short side. Two bag-collecting rods are placed along the long side, and one hot press rod is placed along the short side. A heating wire is installed on the side of the baseboard opposite the hot press rods. This also allows the bag-collecting rods and hot press rods to move synchronously and over the same distance.

[0027] In order to realize the design of automatic trash cans of various sizes, diameters and shapes, it is not necessarily possible to ensure that the mouth of the trash can is square, or a rectangle with one side twice the length of the other side. Therefore, it is preferred to include two independent pull wires, one to drive the bag gathering rod and the other to drive the hot pressing rod, so that the moving speed and distance of the bag gathering rod and the hot pressing rod can be controlled separately, without being constrained by the fact that the moving distances of the bag gathering rod and the hot pressing rod must be equal when a single pull wire is used. The two pull wires are driven by two winch motors respectively to achieve more flexible control; or, the two winding wheels are driven by one winch motor, such as a winch motor with two output shafts, and the ratio of the linear speeds of the winding wheels installed on the two output shafts is equal to the ratio of the distances that the bag gathering rod and the hot pressing rod need to move.

[0028] A trash can comprises the above-mentioned trash bag closing and sealing mechanism. Beneficial effects

[0029] The present invention adopts the above technical solution, uses a winch motor and a pull wire to drive the bag gathering rod and the hot pressing rod to move, does not require the use of multiple synchronous belts and synchronous pulleys, does not use or reduces the use of track rods, and has the characteristics of simple structure, compact size and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation on this application.

[0031] FIG1 is a schematic structural diagram of Example 1;

[0032] FIG2 is a schematic diagram of Example 1 in a heat-sealed state;

[0033] FIG3 is a schematic structural diagram of Example 2;

[0034] FIG4 is a schematic structural diagram of Example 3;

[0035] FIG5 is a schematic diagram of Example 3 in a heat-sealed state;

[0036] FIG6 is a schematic structural diagram of Example 4;

[0037] FIG7 is a schematic structural diagram of Example 5;

[0038] FIG8 is a schematic structural diagram of Example 6;

[0039] FIG9 is a schematic diagram of Example 6 in a heat-sealed state. Best Mode for Carrying Out the Invention

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0042] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0043] In the description of the present invention, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise explicitly specified.

[0046] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] Example 1:

[0049] As shown in Figure 1, a garbage bag closing and sealing mechanism includes a base plate 1, and a through-hole area 101 in the middle of the base plate is a garbage input channel. The bottom plate of the garbage bag storage device is usually used as the base plate of the closing and sealing device. For ease of layout, the through-hole area is generally approximately square or rectangular. Several pulleys 2 are provided at the four corners of the through-hole area. The pulleys 2 are rotatably mounted on pulley shafts 201, and the pulley shafts 201 are fixed to the base plate 1. A pulley 3 is tensioned on the pulley 2. The pulley 3 is arranged in a direction parallel to the edge 102 and the edge 103 of the through-hole area 101, and the directions of the two edges are respectively defined as the X direction and the Y direction. A winch motor 4 is also provided, and a winding wheel 401 is fixed to the output shaft of the winch motor 4. The first end 301 of the pull wire is directly fixed to the winding wheel 401, and the second end 302 of the pull wire is fixed to the winding wheel 401 after being pre-wound several times on the winding wheel 401. Initially, as shown in the state of Figure 1, when the hoisting motor 4 rotates forward, which is counterclockwise in Figure 1, the first end 301 of the pull wire is gradually wound onto the stranding wheel, and the second end 302 of the pull wire is gradually released from the stranding wheel 401. Initially, as shown in the state of Figure 2, when the hoisting motor rotates reversely, which is clockwise in Figure 2, the first end 301 of the pull wire wound onto the stranding wheel is gradually released again, and the second end 302 of the pull wire is gradually wound onto the stranding wheel again. As the hoisting motor 4 rotates, the pull wire 3 will make a straight line motion forward or backward along the direction of the boundary of the through-hole area. Both ends of a pull wire are on the stranding wheel. As the hoisting motor rotates, part of the pull wire must move forward and part must move backward.

[0050] This garbage bag closing and sealing mechanism also features bag-gathering rods 501, 502 and hot-pressing rods 601, 602. Depending on the actual structural requirements, the bag-gathering rods can be positioned in the X direction, while the hot-pressing rods can be positioned in the Y direction. The ends of the bag-gathering rods are fixed to the portion of the pull cable that moves in the X direction, while the ends of the hot-pressing rods are fixed to the portion of the pull cable that moves in the Y direction. This allows the bag-gathering rods and hot-pressing rods to move linearly in their respective directions as the winch motor rotates.

[0051] This embodiment features two bag-collecting rods 501 and 502, which are driven toward each other by a pull cord. Also provided are two heat-pressing rods 601 and 602, which are driven toward each other by a pull cord and cooperate with the bag-collecting rods to collect the garbage bag to the center of the barrel opening. One of the heat-pressing rods is equipped with a heating wire, while the other is equipped with an elastic member. When the winch motor 4 rotates forward to fully tighten the pull cord, the two heat-pressing rods press the garbage bag's opening to the center of the barrel opening. At this point, the heating wire is energized, sealing the garbage bag's opening tightly (see Figure 2).

[0052] The bag-gathering rod and hot-pressing rod are secured by wires in a direction parallel to the substrate plane and can withstand force. However, in a direction perpendicular to the substrate plane, they are only initially positioned by wires and may deviate after being subjected to force. Because the mechanism on the substrate needs to be covered by a cover plate, positioning ribs can be provided on the substrate and cover plate at both ends of the bag-gathering rod and hot-pressing rod to serve as boundaries for the bag-gathering rod and hot-pressing rod in a direction perpendicular to the substrate plane. This allows the bag-gathering rod and hot-pressing rod to move only in a direction parallel to the substrate plane, while there is only a slight gap in the direction perpendicular to the substrate plane, preventing significant deviation.

[0053] This embodiment also discloses a trash can, which adopts the above-mentioned trash bag closing and sealing mechanism.

[0054] Example 2:

[0055] In actual design, it may be necessary to consider reducing the number of pulleys and shortening the length of the pull wire, and adopt a single-end drive method of the bag-closing rod and the hot pressing rod.

[0056] In the garbage bag closing and sealing mechanism shown in Figure 3, only one end of the bag-collecting rods 501, 502 and the hot-pressing rods 601, 602 are fixed to the pull wire; the other ends do not require pull wires. This simplifies the pull wires and pulleys, requiring only two adjacent sides of the opening, i.e., the two sides of the through-hole area 101. This shortens the pull wires and reduces the number of pulleys. However, the bag-collecting rods and hot-pressing rods, driven at one end, require track rods for positioning and guidance. The ends of the bag-collecting rods 501 and 502 that are fixed to the pull wire 2 are provided with holes, allowing track rods 702 to pass through these holes, slidably securing the bag-collecting rods 501, 502 to the track rods 702. Similarly, the hot-pressing rods 601, 602 can also be slidably secured to the track rods 701. This embodiment simplifies the pull wires and pulleys, but the use of metal track rods slightly increases the cost.

[0057] Other structures are the same as those in Example 1 or are set with reference to Example 1.

[0058] This embodiment also discloses a trash can, which adopts the above-mentioned trash bag closing and sealing mechanism.

[0059] Example 3:

[0060] The bag-gathering rod and the hot-pressing rod are fixed on the same pull line, and must have the same speed and stroke. Therefore, it is necessary to make the bag-gathering rod and the hot-pressing rod have the same stroke when the closing and sealing mechanism moves from the standby state to the sealing state. For a square barrel mouth, the stroke in the X direction and the Y direction are the same, and the number of bag-gathering rods moving in the X direction and the number of hot-pressing rods moving in the Y direction must also be the same. The above embodiment uses two bag-gathering rods and two hot-pressing rods, and the stroke of the bag-gathering rod and the hot-pressing rod is generally half the length of the barrel mouth. In order to simplify the structure, a single bag-gathering rod and a single hot-pressing rod can also be used. The stroke of the bag-gathering rod and the hot-pressing rod is approximately the length of the barrel mouth.

[0061] FIG4 shows a garbage bag closing and sealing mechanism. The pull line 3 employs the same layout as in Example 1, but only has one bag-collecting rod 501 and one heat-pressing rod 601. Furthermore, a heating rod 603, which houses a heating wire, is required. When the hoist motor 4 rotates counterclockwise, the bag-collecting rod 501 pulls the garbage bag toward the edge 102, while the heat-pressing rod 601 simultaneously pulls the garbage bag toward the heating rod 603. Ultimately, the bag-collecting rod and the heat-pressing rod cooperate to gather the garbage bag to the upper left corner of the opening 101. After the heat-pressing rod 601 presses the gathered garbage bag against the heating rod 603, the heating wire mounted on the heating rod 603 is energized, sealing and cutting the garbage bag (see FIG5 ).

[0062] Other structures are the same as those in Example 1 or are set with reference to Example 1.

[0063] This embodiment also discloses a trash can, which adopts the above-mentioned trash bag closing and sealing mechanism.

[0064] Example 4:

[0065] As shown in FIG6 , a garbage bag closing and sealing mechanism can also use a single bag closing rod 501 and a single heat pressing rod 601 when using the simplified pull wire arrangement as in Example 2. The simplification of the pull wire and pulley requires the addition of track rods 701 and 702.

[0066] Other structures are the same as those in Example 2 or are set with reference to Example 2.

[0067] This embodiment also discloses a trash can, which adopts the above-mentioned trash bag closing and sealing mechanism.

[0068] Example 5:

[0069] In addition to the above-mentioned structure with two bag gathering rods and one heat pressing rod, or the structure with one bag gathering rod and one heat pressing rod, the structure with two bag gathering rods and one heat pressing rod is also common. If a pull wire is used to drive two bag gathering rods and one heat pressing rod at the same time, the distance moved by one heat pressing rod from the standby state to the heat sealing state should be the same as the distance moved by one bag gathering rod. Therefore, the shape of the barrel mouth should be approximately a rectangle with the long side length twice the short side length.

[0070] As shown in Figure 7, a garbage bag closing and sealing mechanism has a barrel opening 101 that is approximately rectangular, with side 102 being approximately twice the length of side 103. The bag-collecting rods 501 and 502 are arranged to move along the long side 102, and the hot pressing rod 601 is arranged to move along the short side 103. When the hoisting motor 4 rotates counterclockwise, the pull wire 3 drives the bag-collecting rods 501 and 502 to move toward each other, gathering the garbage bag to the center of the barrel opening 101. Simultaneously, the pull wire 3 drives the hot pressing rod 601 to move to the position of the electric heating rod 603, thereby pressing the gathered garbage bag against the heating wire on the electric heating rod 603, completing the heat sealing of the garbage bag.

[0071] Other structures are the same as those in Example 1 or are set with reference to Example 1.

[0072] This embodiment also discloses a trash can, which adopts the above-mentioned trash bag closing and sealing mechanism.

[0073] Example 6:

[0074] A single pull wire drives the bag gathering rod and the hot pressing rod at the same time. The proportional relationship between the moving distance of the bag gathering rod and the moving distance of the hot pressing rod is constrained, thereby constraining the shape of the barrel mouth.

[0075] To achieve the design of automated trash cans in a variety of sizes, diameters, and shapes, it's not always possible to guarantee a nearly square opening, or a nearly rectangular shape with one side twice as long as the other. This can be achieved by using two independent pull cables: one driving the bag-collecting rod and the other driving the hot-pressing rod. This allows for independent control of the speed and distance of each rod, eliminating the fixed distance constraints of a single pull cable. The two pull cables can be driven by separate winch motors, enabling more flexible control.

[0076] As shown in Figure 8, a garbage bag closing and sealing mechanism comprises a pull wire 3 driving the bag-closing rods 501 and 502, which are driven by a hoisting motor 4; another pull wire 8 driving the hot pressing rod 601, which is driven by a hoisting motor 9. The pull wires 3 and 8 are drawn in a staggered manner in Figure 8 for clarity, but are actually arranged one above the other. At the pulley where the pull wires 3 and 8 pass at the same time, two pulleys are installed one above the other, one for positioning the pull wire 3 and the other for positioning the pull wire 8. When the hoisting motor 4 rotates counterclockwise, it drives the bag-closing rods 501 and 502 to close the garbage bag to the middle of the barrel mouth; at the same time, the hoisting motor 9 also rotates counterclockwise, driving the hot pressing rod 601 to bring the garbage bag closer to the electric heating rod 603, and finally pressing the closing part of the garbage bag against the electric heating wire for electric heating sealing, as shown in Figure 9.

[0077] In this way, the bag collecting rod and the hot pressing rod move independently and have no fixed proportional relationship, so the sizes of the barrel mouth edges 102 and 103 can be flexibly designed to make automatic trash can products of different shapes and sizes that meet user needs.

[0078] To further reduce costs, it can also be driven by a single winch motor with two output shafts, one output shaft drives the pull wire 3, and the other output shaft drives the pull wire 8. The ratio of the linear speeds of the twisting wheels installed on the two output shafts is equal to the ratio of the distances required to move the bag-gathering rod and the hot pressing rod.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "an implementation", "specific implementation", "other implementations", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment, implementation or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described above may also be combined in a suitable manner in any one or more embodiments, implementations or examples. The technical solutions described in the present invention also include technical solutions formed by any one or more specific features, structures, materials or characteristics described above, either alone or in combination.

[0080] Although the embodiments of the present invention have been shown and described above, it is understandable that the above embodiments are illustrative and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace, modify, delete some features, add features, or re-combine features to form a technical solution within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the innovative principles of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A garbage bag closing and sealing mechanism, comprising: The through-hole area in the middle of the substrate is the garbage input channel; A bag-closing rod for closing the mouth of a garbage bag; Heat-pressed rods for hot-melt sealing of garbage bags; It is characterized by further comprising: A winch motor, wherein a stranding wheel is fixed on the output shaft of the winch motor; Pull wire, part of the pull wire is wound on the twisting wheel, and the other part of the pull wire is tensioned and set on the base plate through the pulley; the bag gathering rod and the hot pressing rod are respectively fixed on the pull wire, and the winch motor drives the twisting wheel to rotate forward and reverse, thereby driving the bag gathering rod and the hot pressing rod to move respectively through the pull wire.

2. A garbage bag closing and sealing mechanism according to claim 1, characterized in that: The pull wire is connected at both ends to form a closed loop, and the pull wire is fixedly connected to the stranding wheel.

3. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: The first end of the pull wire is directly fixed on the winding wheel, and the second end of the pull wire is fixed on the winding wheel after being pre-wound several times on the winding wheel; when the winch motor rotates forward, the first end part of the pull wire is gradually wound onto the winding wheel, and the second end part of the pull wire is gradually released from the winding wheel; when the winch motor rotates reversely, the first end part of the pull wire wound on the winding wheel is gradually released again, and the second end part of the pull wire is gradually wound onto the winding wheel again.

4. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: The through-hole area of ​​the substrate is square or rectangular, and the pulling wire forms a closed loop after winding around these pulleys and the twisting wheel; pulleys for winding the pulling wire are provided at the four corners of the through-hole area of ​​the substrate, and the two ends of the bag-gathering rod are fixed on the part of the pulling wire that moves along the X direction, and the two ends of the hot pressing rod are fixed on the part of the pulling wire that moves along the Y direction.

5. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: The through-hole area of ​​the substrate is square or rectangular, and the pulling wire forms a closed loop after winding around these pulleys and the twisting wheel; pulleys for winding the pulling wire are provided at the three corners of the through-hole area of ​​the substrate, one end of the bag-gathering rod is fixed on the part of the pulling wire that moves along the X direction, and one end of the hot pressing rod is fixed on the part of the pulling wire that moves along the Y direction, and two track rods are provided on the substrate for guiding the movement of the bag-gathering rod and the hot pressing rod respectively.

6. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: It includes two heat-pressing rods and two bag-gathering rods; the two bag-gathering rods are driven by a pull wire to move toward each other, and gather the garbage bag to the middle position of the barrel mouth; the two heat-pressing rods are driven by a pull wire to move toward each other, and cooperate with the bag-gathering rods to gather the garbage bag to the middle position of the barrel mouth; one of the heat-pressing rods is provided with an electric heating wire, and the other heat-pressing rod is provided with an elastic body, and the two heat-pressing rods heat-seal and cut the closing part of the garbage bag.

7. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: The utility model comprises a heat pressing rod and a bag gathering rod; the bag gathering rod is driven by a pulling wire to gather the garbage bag to the side of the barrel opening; at the same time, the heat pressing rod is driven by the pulling wire to cooperate with the bag gathering rod to gather the garbage bag to a corner of the barrel opening; an electric heating rod is provided at a position corresponding to the heat pressing rod on the base plate, an electric heating wire is provided on the electric heating rod, and an elastic body is provided on the heat pressing rod; the elastic body and the electric heating wire are pressed tightly to heat-seal and cut the closing part of the garbage bag.

8. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: It includes a hot pressing rod and two bag gathering rods; the two bag gathering rods are driven by a pull wire to move toward each other, and the garbage bag is gathered to the middle position of the barrel mouth; the base plate is provided with an electric heating rod at a position corresponding to the hot pressing rod, and the electric heating rod is provided with an electric heating wire, and the hot pressing rod is provided with an elastic body; the pull wire drives the hot pressing rod to move to the position of the electric heating rod, so that the gathered garbage bag is pressed tightly against the heating wire on the electric heating rod, completing the heat sealing and cutting of the garbage bag.

9. The garbage bag closing and sealing mechanism according to claim 1, characterized in that: It includes two independent pulling wires, one drives the bag gathering rod and the other drives the hot pressing rod; the two pulling wires are driven by two winch motors respectively, or driven by one winch motor to drive two stranding wheels.

10. A trash can, characterized in that: It comprises a garbage bag closing and sealing mechanism as claimed in any one of claims 1 to 9.

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