Automatic packaging trash can that closes the bag opening with a flexible belt

Abstract

This invention provides an automatic packaging trash can that closes the bag opening with a flexible belt, and belongs to the technical field of trash cans. [Solution] The box has an upward-facing opening, the box lid is placed over the opening, a bag closing mechanism is provided at the opening, an input opening is formed in the middle of the bag closing mechanism, the middle of the bag closing mechanism penetrates the input opening, the opening of the garbage bag is fitted into the input opening, the bag body penetrates the middle part of the bag closing mechanism, the bag closing mechanism is provided with an annular cavity surrounding the input opening, the inside of the cavity is open and communicates with the input opening of the garbage can, the bag closing mechanism further includes a cutting torch, a position regulating block, a flexible belt and a drive wheel provided in the cavity, one end of the cutting torch is connected to one end of the flexible belt, the other end of the cutting torch is provided with a drive wheel, the other end of the flexible belt extends along a rail, penetrates the position regulating block and is transmitted to the drive wheel.

Description

Technical Field

[0001] The present invention belongs to the technical field of garbage bins, and specifically relates to an automatic packaging garbage bin that closes the bag mouth with a flexible belt.

Background Art

[0002] With the development of society and the improvement of people's living standards, the requirements for garbage treatment are also increasing. In the process of using conventional garbage bins, there are many inconveniences such as the emission of strange odors due to the non-tight sealing of the garbage bag, the lack of hygiene in the user tying the garbage bag by hand, and the cumbersome operation of collecting the bag. Also, when the lid of the garbage bin is opened, the garbage in the bin is likely to be exposed or seen by the user. If the garbage in the bin is some private garbage such as disposable diapers or sanitary napkins, it is likely to cause discomfort to the user in terms of vision and smell. Therefore, with the progress of social science and technology, higher requirements are put forward for trash cans in terms of functions such as preventing the spread of strange odors, preventing hygienic infections, preventing the exposure of privacy, and sealing isolation.

[0003] To solve these problems, garbage bins that can automatically package garbage bags are gradually being commercially available, and these garbage bins have significantly improved the degree of automation of garbage treatment. These garbage bins usually use one or two pressing rods / pressing plates to press the collection mouth of the garbage bag against the edge of the box mouth, and then complete the sealed packaging through the cooperation of the sealing device and the pressing rod / pressing plate. In the prior art, Chinese Patent CN1065647B discloses an automatic heat-sealing garbage bag device for a garbage bin and its method. Among them, the clamping plate is pushed by a driving mechanism to move to the heating module. When the clamping plate contacts the heating module, the garbage bag mouth closes. At this time, the heating module is activated to melt the garbage bag mouth.

[0004] However, the above prior art has many drawbacks in the actual application process. (1) The device has a complex structure, requiring the separate installation of multiple components such as sliders, guide rails, clamping plates, and timing pulley groups, making control complicated and resulting in high manufacturing costs. (2) Both the clamping plate and the heating module are made of rigid materials, and the contact area between them is large, which contributes to improved sealing efficiency, but overheating can easily damage the garbage bag, affecting the packaging effect and subsequent processing. (3) Because the material of the garbage bag is flimsy, it can easily get stuck at the corners of the retaining plate or retaining bar, making collection impossible, which in turn directly damages the garbage bag and degrades the user experience. (4) Most press plates / press bars have a long body structure, and the side of these press plates / press bars that contacts the heating module is a flat structure. When the press plate / press bar bends, the flat structure deforms, and this deformation prevents the garbage bag from making sufficient contact with the heating module after crimping, causing problems with poor sealing of the garbage bag. This not only affects the sealing effect but also reduces the reliability of the packaging and the actual effectiveness of use.

[0005] Therefore, to solve the above problem, an automated packaging trash can that closes the bag opening with a flexible belt is necessary. [Overview of the project]

[0006] To solve the problems of the prior art, the present invention provides an automatic garbage packaging bin that closes the bag opening with a flexible belt. The drive wheel automatically winds the flexible belt from the inside of the rail to the heat cutter, and the heat cutter presses and heat-seals the bag opening. In the present invention, the process of sealing the garbage bag is greatly simplified, eliminating the need for the user to manually close and tie it, avoiding direct contact with the garbage, reducing the risk of bacterial spread, and being advantageous in preventing the spread of garbage odors.

[0007] The technical means of the present invention are as follows.

[0008] An automatic packaging trash can that closes the bag opening with a flexible belt, Including a box lid, a bag closing mechanism is further provided at the bottom of the box lid, an input opening is formed in the middle of the bag closing mechanism, and the opening of the garbage bag is located inside the input opening. The opening of the garbage bag passes through the middle of the bag sealing mechanism, the opening of the garbage bag is fitted into the opening, the bag body passes through the middle part of the bag sealing mechanism, the bag sealing mechanism is provided with an annular cavity surrounding the opening, the inside of the cavity is open and communicates with the opening of the garbage can, at least a support part is provided inside the cavity, and a lace is provided on the support part that rotates from the inside to the outside, The bag closing mechanism further includes a cutting torch, a position regulating block, a flexible belt, and a drive wheel provided within the cavity, wherein one end of the cutting torch is connected to one end of the flexible belt, the other end of the cutting torch is provided with the drive wheel, the other end of the flexible belt extends along the rail, passes through the position regulating block and is transmitted to the drive wheel, and the rotation of the drive wheel causes the flexible belt to be elastically wound up or unwound. When the flexible belt is wound from the inside of the rail to the cutting torch, the cutting torch, the position regulating block, and the flexible belt surround and close together, the opening of the garbage bag is pulled towards the cutting torch by the flexible belt, the cutting torch press and seal the opening of the bag, and when the drive wheel rotates in the reverse direction, the cutting torch separates from the position regulating block, the flexible belt unfolds along the rail, and the opening of the garbage bag is released from the pressure, thus creating an automatic garbage packaging bin.

[0009] Furthermore, the cutting torch includes a first clamping arm and a second clamping arm, the first clamping arm including a connecting end and a hinge connecting end, the connecting end of the first clamping arm being connected to a flexible belt, the hinge connecting end of the first clamping arm being rotatably provided within the cavity, the second clamping arm being fixedly provided within the cavity, the second clamping arm being located on the side of the hinge connecting end of the first clamping arm, and the first clamping arm rotating around the hinge connecting end by the drive of the flexible belt, thereby rotating the first clamping arm relative to the second clamping arm to open and close it. The second clamping arm includes an insulating base and a heating element, the insulating base being located on the side of the hinge connection end, the heating element being used to heat-seal the opening of the garbage bag, the insulating base having a heating and crimping surface on the side facing the bag opening, the heating and crimping surface being provided along the longitudinal direction of the second clamping arm, the heating element being provided on the heating and crimping surface, and the first clamping arm having a pressing surface on the side facing the garbage bag, the pressing surface being used to clamp together with the heating and crimping surface.

[0010] Furthermore, the cavity includes a top plate and a bottom plate, the top plate and bottom plate being located on the upper and lower sides of the cavity, respectively, and the cavity being formed by being enclosed by the top plate and bottom plate, the hinge connection end of the first clamping arm being rotatably connected to the top plate, the bottom plate being formed as the support portion, the first clamping arm having a pressing platform extending from the hinge connection end to the connection end, the pressing plane being formed on one side of the pressing platform, The bag closing mechanism includes a rotating shaft and a rotating groove, the rotating shaft being provided on the top plate, the first clamping arm having a rotating groove formed therein, and the rotating groove rotating around the rotating shaft. The first clamping arm is seven-shaped, the axis of the rotating groove moves away from the pressing platform in the direction of the second clamping arm, and the pressing plane and the plane passing through the axis of the rotating groove form a bend.

[0011] Furthermore, the second clamping arm has a flange at the end of the heat insulating base furthest from the first clamping arm, the flange is provided along the length of the second clamping arm, the height of the flange is less than the height of the heat insulating base, the position regulating block is provided with a locking opening for the flange to pass through, the height of the flange is less than the height of the locking opening, and when the flange is fully locked into the locking opening, the flexible belt will not be tightened. The heating device is a strip-shaped heating wire.

[0012] Furthermore, the position regulating block is provided with a slide groove for the flexible belt to slide, the flexible belt is power-driven to the position regulating block via the slide groove, the top plate in the cavity is provided with a guide rail for the position regulating block to slide on, the top of the position regulating block is provided with a protrusion that slides against the guide rail, and the width of the guide rail is greater than the diameter of the protrusion.

[0013] Furthermore, the present invention further includes an elastic member, one end of which is fixedly connected to the top plate and the other end of which is elastically connected to the protrusion, and the elastic extension direction of the elastic member is the same as the extension direction of the guide rail.

[0014] Furthermore, the flexible belt is inserted into the slide groove from top to bottom or bottom to top, and the width of the slide groove is greater than the thickness of the flexible belt, thereby forming a gap between the flexible belt and the slide groove.

[0015] Furthermore, the rail is made up of multiple straight segments and / or arc segments connected in sequence, and the connection points between each straight segment and / or arc segment are arc-shaped.

[0016] Furthermore, both the starting and ending ends of the rail are provided at an incline, with the starting end of the rail gradually approaching the input opening along the direction of the rail's extension, and the ending end of the rail gradually moving away from the input opening along the direction of the rail's extension, thereby increasing the area between the rail and the inner boundary of the support section near the intersection as the rail completes a full circuit.

[0017] Furthermore, the drive wheel is powered by a drive mechanism, the drive wheel is a toothed belt winding wheel, and the flexible belt is provided with a fitting portion that is powered by the drive wheel.

[0018] Furthermore, the drive device is a drive motor, used to directly or indirectly drive the rotation of the drive wheel. The aforementioned input opening has an annular structure with a through-hole in the middle. The cross-section of the annular structure may include circular, elliptical, or polygonal shapes.

[0019] Furthermore, the drive wheel is powered by a drive mechanism, the drive wheel is a toothed belt winding wheel, and the flexible belt is provided with a fitting portion that is powered by the drive wheel. A box ring is provided at the upper end of the top plate inside the cavity, and the box lid is hinged to the box ring.

[0020] Beneficial Effects of the Present Invention (1) The present invention drives the rotation of the driving wheel, automatically winds or unwinds the flexible belt by the driving wheel, and the bag mouth of the garbage bag is drawn by the flexible belt to the fuse. The fuse presses the bag mouth to perform fusing and sealing. In the present invention, the process of sealing the garbage bag is greatly simplified, and there is no need for the user to manually close and tie it. Further, the flexible belt is tightened by the drive of the driving wheel. The tightened flexible belt gradually draws the garbage bag into the welding area of the fuse. Further, the flexible belt is also a power source for driving the fuse to clamp the garbage bag. In this embodiment, only one power source (flexible belt) simultaneously realizes multiple functions such as bringing in, sandwiching, and fusing and sealing the garbage bag, thereby greatly simplifying the complexity of the entire structure and reducing the manufacturing cost.

[0021] (2) Compared with the conventional sealing structure using a pressing bar / pressing plate of a garbage bin, the bag closing mechanism of the present invention has a simpler structure and a simple operation process for controlling the winding or unwinding of the flexible belt. In the present invention, further, through the design of the cavity, the position regulating block, and the rail, the winding and unwinding of the flexible belt become smoother, and the structure of the entire bag closing mechanism is more compact.

[0022] (3) The automatic bag closing process of the present invention avoids direct contact between the user and the garbage, reduces the risk of bacteria spread, and the sealed garbage bag prevents garbage leakage and mosquito breeding, improves the public health level, is safer, prevents the spread of the smell of garbage, and helps to keep the surrounding environment clean.

Brief Description of the Drawings

[0023] [Figure 1] It is a structural schematic diagram of an automatic packaging garbage bin that closes the bag mouth by the flexible belt of the present invention. <00​​​​​ [Figure 4] It is a schematic structural diagram after removing some members from the bag closing mechanism of the present invention. [Figure 5] It is an exploded view of the structure of the bag closing mechanism of the present invention. [Figure 6] It is a cross-sectional view of the bag closing mechanism of the present invention. [Figure 7] It is an enlarged view of the location A in FIG. 6. [Figure 8] It is a schematic diagram of the structure after opening the fuse of the present invention. [Figure 9] It is a schematic structural diagram of the first clamping arm of the present invention. [Figure 10] It is a schematic structural diagram of the second clamping arm of the present invention. [Figure 11] It is a schematic diagram of the clamping structure of the fuse of the present invention. [[ID=并25]] [Figure 12] It is a top view of the clamping structure of the fuse of the present invention. [Figure 13] It is a schematic structural diagram of the position regulating block of the present invention. [Figure 14] It is a schematic structural diagram of the position regulating block from another perspective of the present invention. [Figure 15] It is a schematic diagram of the operation of the flexible belt of the present invention being gradually wound around from the inside of the rail. [Figure 16] It is a schematic structural diagram of the heating element of the present invention.

[0024] Explanation of reference signs 1. First clamping arm; 11. Pressing platform; 111. Pressing surface; 12. Rotating groove; 13. Bending angle; 14. Avoidance groove; 15. Connecting groove; 151. Connecting hole; 16. Connecting end; 17. Hinge connecting end; 2. Second clamping arm; 21. Insulation base; 211. Heating and crimping surface; 212. Projection; 213. First position regulating groove; 214. Second position regulating groove; 215. Mounting groove; 2151. Mounting hole; 22. Flange; 23. Heating device; 24. First end; 25. Extended part; 26. Second end; 3. Box lid; 4 , bag closing mechanism; 41, input opening; 42, top plate; 421, rotating shaft; 422, guide rail; 423, first position regulating part; 424, first guide part; 43, bottom plate; 431, second position regulating part; 432, second guide part; 44, cavity; 45, rail; 451, starting end; 452, end end; 46, guide opening; 47, contact part; 5, position regulating block; 51, slide groove; 52, protrusion; 53, locking opening; 6, flexible belt; 7, drive wheel; 8, elastic member; 9, box ring; 10, cutting torch. [Modes for carrying out the invention]

[0025] The technical concepts in the embodiments of the present invention will be described clearly and completely below with reference to the drawings of the embodiments of the present invention, and it is clear that the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative work based on the embodiments of the present invention are within the scope of the protection of the present invention.

[0026] In the description of this invention, directions or positional relationships indicated by terms such as "center," "vertical direction," "horizontal direction," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are based on the directions or positional relationships shown in the drawings and are merely for the convenience and simplification of the description of this invention. They do not indicate or imply that the specified equipment or element has a specific direction or must be configured and operated in a specific direction, and should not be understood as limiting this invention.

[0027] As shown in Figure 1-5, the automatic packaging trash can that closes the bag opening with a flexible belt provided in this embodiment includes a box body and a box lid 3. The box body has an upward-facing opening, and the box lid 3 covers the opening. A bag closing mechanism 4 is further provided at the opening. An input opening 41 is provided in the middle of the bag closing mechanism 4. A storage cavity for accommodating trash bags is provided inside the box body. The opening of the trash bag is located inside the input opening 41.

[0028] The central part of the bag sealing mechanism 4 communicates with the input opening 41. The opening of the garbage bag is fitted into the input opening 41, and the body of the garbage bag passes through the through-hole in the central part of the bag sealing mechanism 4. The bag sealing mechanism 4 is provided with an annular cavity 44 surrounding the input opening 41. The cavity 44 opens inward and communicates with the input opening 41 of the garbage can. At least a support part is provided inside the cavity 44. A rail 45 is provided on the support part, rotating from the inside to the outside.

[0029] The bag closing mechanism 4 further includes a cutting torch 10, a position regulating block 5, a flexible belt 6, and a drive wheel 7, all located within the cavity 44. One end of the cutting torch 10 is connected to one end of the flexible belt 6, and the other end of the cutting torch 10 is connected to the drive wheel 7. The other end of the flexible belt 6 extends along the rail 45, passes through the position regulating block 5, and is transmitted to the drive wheel 7. The rotation of the drive wheel 7 causes the flexible belt 6 to be elastically wound up or unwound.

[0030] When the flexible belt 6 is wound from the inside of the rail 45 to the cutting torch 10, the cutting torch 10, the position regulating block 5, and the flexible belt 6 are enclosed and closed, and the opening of the garbage bag is closed by the flexible belt 6 up to the cutting torch 10, and the cutting torch 10 presses against the opening of the bag and cuts it to seal it. When the drive wheel 7 rotates in the opposite direction, the position regulating block 5 moves away from the cutting torch 10, and the flexible belt 6 unfolds along the rail 45, thereby releasing the opening of the garbage bag from being pressed.

[0031] In this embodiment, the process of sealing the garbage bag is greatly simplified by driving the winding and unwinding of the flexible belt 6 with the drive wheel 7, eliminating the need for the user to manually close and tie the bag. This improves the convenience and efficiency of using the garbage can and is advantageous in preventing the spread of garbage odors.

[0032] Furthermore, compared to the conventional trash can sealing structure using a retaining bar / plate, the bag closing mechanism 4 according to this embodiment has a simpler structure and a simpler operation process for controlling the winding or unwinding of the flexible belt 6.

[0033] Furthermore, in this embodiment, sealing the garbage bag by heating it using the heat-sealing torch 10 is more environmentally friendly and saves materials compared to conventional methods of tying it by hand or sealing it with tape.

[0034] Furthermore, in this embodiment, by providing the bag sealing mechanism 4 at the box opening, the bag sealing mechanism 4 can be applied to a larger number of trash cans. In addition, by providing the position regulating block 5 inside the cavity 44, the position regulating block 5 moves along the cavity 44 when the flexible belt 6 is wound up. The position regulating block 5 prevents the flexible belt 6 from shifting, which makes the winding and unwinding of the flexible belt 6 smoother, the overall structure of the automatic packaging trash can more compact, does not take up extra space, and is suitable for use in various environments such as homes and offices.

[0035] As shown in Figure 8-12, the cutting torch 10 includes a first clamping arm 1 and a second clamping arm 2. The first clamping arm 1 includes a connecting end 16 and a hinge connecting end 17. The connecting end of the first clamping arm 1 is connected to a flexible belt 6. The hinge connecting end of the first clamping arm 1 is rotatably mounted within the cavity 44. The second clamping arm 2 is fixedly mounted within the cavity 44. The second clamping arm 2 is located on the hinge connecting end side of the first clamping arm 1. The first clamping arm 1 rotates around the hinge connecting end by the drive of the flexible belt 6, thereby rotating the entire first clamping arm 1 relative to the second clamping arm 2 to open and close it.

[0036] In this embodiment, the flexible belt 6 is tightened by the drive of the drive wheels 7. The tightened flexible belt 6 gradually draws the garbage bag into the welding area of ​​the cutting torch 10. The flexible belt 6 also serves as the power source that drives the clamping of the first clamping arm 1 and the second clamping arm 2. In this embodiment, multiple functions such as drawing in, clamping, and sealing the garbage bag are achieved simultaneously with only one power source (flexible belt), thereby greatly simplifying the overall complexity of the structure and reducing manufacturing costs.

[0037] The second clamping arm 2 includes an insulating base 21 and a heating element 23. The heating element 23 is used to heat-seal the opening of the bag. A heat-sealing surface 211 is provided on the side of the insulating base 21 facing the bag opening. The heat-sealing surface 211 is provided along the length of the second clamping arm 2. The heating element 23 is provided on the heat-sealing surface 211. A pressing surface 111 is provided on the side of the first clamping arm 1 facing the garbage bag. The pressing surface 111 is used to clamp with the heat-sealing surface 211.

[0038] In the clamping type cutting torch structure provided in this embodiment, by designing the clamping mechanism of the first clamping arm 1 and the second clamping arm 2, the cutting torch 10 has a clip-like clamping function and can efficiently cut and seal the attracted garbage bag. Driven by the belt body 3, the first clamping arm 1 rotates around the rotation axis of the hinge connecting end 17, and the connecting end 16 is driven to approach the second clamping arm 2 and clamp together with the second clamping arm 2. In this process, the heating element 23 on the second clamping arm 2 heats and melts the plastic material of the garbage bag, thereby cutting the garbage bag and forming a temporary seal as the material on both sides of the cut softens at high temperature and partially fuses. In addition, the pressing surface 111 of the first clamping arm 1 and the heating and pressing surface 211 of the second clamping arm 2 are tightly clamped during the heating process, and the molten plastic material comes into sufficient contact and fuses due to the applied pressure. Subsequently, the plastic material hardens, forming a well-sealed opening. The flat design of the pressing surface 111 and the heat-sealing surface 211 ensures a uniform pressure distribution, avoiding fusion failures due to localized pressure deficiencies. Therefore, the clamp-type waste bin sealing device structure of the present invention can ensure the integrity and airtightness of the sealed opening. Such a design greatly simplifies the sealing mechanism of the waste bag, improves sealing efficiency, and makes it easy to operate.

[0039] Furthermore, due to the clamping operation method, the heating element 23 is accumulated inside the second clamping arm 2. When the first clamping arm 1 and the second clamping arm 2 are closed, the heating element 23 is completely enclosed within the first and second clamping arms 1 and 2, thus preventing direct contact between the operator and the heating element 23. This reduces accidental damage that may occur when the heating element 23 is sealed, further improving the safety of the product during use.

[0040] Specifically, as shown in Figure 16, the second clamping arm 2 further includes two first position regulating grooves 213 and a second position regulating groove 214. The first first position regulating groove 213 is provided at the end of the insulating base 21 furthest from the flange 22. The two first position regulating grooves 213 are provided at the ends of the flange 22 furthest from the first clamping arm 1. The second position regulating groove 214 is provided in the center of the heat-pressing plane 211. Both ends of the second position regulating groove 214 communicate with the two first position regulating grooves 213, respectively. The two first position regulating grooves and the second position regulating groove are located on the same plane. The heating element 23 includes a connected first end 24, an extension 25, and a second end 26. The first end 24 is provided within the first position regulating groove 213. The extended portion 25 is provided extending from one end of the first position regulating groove 213 along the second position regulating groove 214. The second end portion 26 is provided within the second first position regulating groove 213. Specifically, the heating element 23 has a U-shaped structure.

[0041] Specifically, the second position regulating groove 214 is provided along the longitudinal direction of the second clamping arm 2. The extended portion 25 provided within the second position regulating groove 214 protrudes from the heat-pressing plane 211.

[0042] A first position regulating groove 213 and a second position regulating groove 214 are provided that communicate with the heat-sealing surface 211, and the heating element 23 is positioned in the first position regulating groove 213 and the second position regulating groove 214, thereby regulating the position of the heating element 23 and preventing insufficient heat sealing of the garbage bag due to displacement or bending of the heating element 23. In addition, an insulating base 21 is provided, and the heating element 23 is positioned within the first position regulating groove 213 and the second position regulating groove 214, effectively preventing heat from the heating element 23 from dissipating from the insulating base 21, ensuring that the heat is concentrated and acts uniformly on the garbage bag, and avoiding safety hazards due to heat dissipation or localized overheating.

[0043] Specifically, a mounting groove 215 is formed at the top of the insulating base 21. A mounting hole 2151 is formed at the bottom of the insulating base 21. The mounting hole 2151 communicates with the mounting groove 215. A mounting portion and fasteners are provided on the top plate 42. The mounting portion fits into the mounting groove 215. The fasteners are secured by sequentially passing through the mounting hole 2151 and the mounting portion.

[0044] The design of the mounting groove 215 and mounting hole 2151 is advantageous for further fixing of the second clamping arm 2, and prevents insufficient heat sealing of the garbage bag due to rattling of the second clamping arm 2.

[0045] Specifically, the cavity 44 includes a top plate 42 and a bottom plate 43. The top plate 42 and the bottom plate 43 are provided on the upper and lower sides of the bag closing mechanism 4, respectively. The circumferential side of the top plate 42 extends toward the bottom plate 43 to form a side plate, or the circumferential side of the bottom plate 43 extends toward the top plate to form a side plate. The cavity 44 is formed by being surrounded by the top plate 42, the bottom plate 43 and the side plate. The bottom plate 43 is formed as a support. The hinge connection end 17 of the first clamping arm 1 is rotatably connected to the top plate 42 in the cavity 44. The connection end 16 of the first clamping arm 1 is connected to the flexible belt 6. The first clamping arm 1 has a pressing platform 11 that extends from the hinge connection end 17 to the connection end 16. The pressing plane 111 is formed on one side of the pressing platform 11.

[0046] The bag closing mechanism 4 includes a rotating shaft 421 and a rotating groove 12. The rotating shaft 421 is provided on the top plate 42. A rotating groove 12 is formed at the hinge connection end 17 of the first clamping arm 1. The rotating groove 12 is provided so as to penetrate along the hinge connection end 17. The rotating shaft 421 is pivotally attached to the rotating groove 12. The rotating groove 12 rotates around the rotating shaft 421. The first clamping arm 1 rotates around the axis of the rotating groove 12 by the drive of the flexible belt 6.

[0047] The shape of the first clamping arm 1 is the shape of the number 7. The axis of the rotating groove 12 moves away from the pressing platform 11 in the direction of the second clamping arm 22. The pressing plane 111 and the plane passing through the axis of the rotating groove 12 form a bend angle 13. The bend angle is 90 degrees.

[0048] Specifically, the first clamping arm further includes two projections 212. The two projections 212 are provided at the end of the insulating base 21 near the hinge connection end. Each projection 212 protrudes from the heat-pressing plane 211. The two projections 212 are arranged symmetrically vertically. The first clamping arm 1 is provided with two avoidance grooves 14 at the bend angle 13 that fit the projections 212. The two avoidance grooves 14 are arranged symmetrically vertically on both sides of the pressing platform 11.

[0049] In this embodiment, the design of the projection 212 and the avoidance groove 14 is advantageous in preventing the garbage bag from getting caught in the gap between the first clamping arm 1 and the second clamping arm 2, and ensures that the garbage bag is completely sealed by heat sealing.

[0050] Specifically, during the tightening process, the garbage bag enters the pressing platform 11. Protrusions 212 are provided at both the upper and lower ends of the insulating base 21, and avoidance grooves 14 are provided at both the upper and lower ends of the first clamping arm 1. These provide a positional control function, preventing the garbage bag from overflowing outside the area of ​​the pressing platform 11, ensuring that the melting area covers the entire area of ​​the garbage bag and preventing situations where the edges of the garbage bag are not completely melted.

[0051] Specifically, two connecting grooves 15 are provided at the connecting end of the first clamping arm 1. The two connecting grooves 15 are arranged symmetrically on both sides of the pressing platform 11. A connecting hole 151 is formed in the pressing platform 11. The connecting hole 151 penetrates both the upper and lower surfaces of the pressing platform 11. The two connecting grooves 15 communicate with each other through the connecting hole 151. The flexible belt 6 is connected to the first arm body 11 via the connecting hole 151 and drives the rotation of the first arm body 11.

[0052] The design of the connecting groove 15 and connecting hole 151 aims to strengthen the connection between the flexible belt 6 and the first clamping arm 1, ensuring that the flexible belt 6 drives the first clamping arm 1 to pull the garbage bag into the cutting range of the cutting torch 10.

[0053] Specifically, the second clamping arm 2 has a flange 22 at the end furthest from the hinge connection end 17 of the first clamping arm 1 on the insulating base 21. The flange 22 protrudes along the length of the second clamping arm 2. The height of the flange 22 is less than the height of the insulating base 21. A locking opening 53 is formed in the position regulating block 5 for the flange 22 to pass through. The height of the flange 22 is less than the height of the locking opening 53. When the flange 22 is fully locked into the locking opening 53, the flexible belt 6 will not be tightened.

[0054] Specifically, the flange 22 has a pointed end, which facilitates insertion into the locking port 53.

[0055] The design of the flange 22 and the locking port 53 ensures that when the positioning block 5 and the cutting torch 10 are connected, the garbage bag is fully positioned within the cutting range of the cutting torch 10 after being pulled in by the flexible belt 6, further improving the sealing effect of the garbage bag and reducing the risk of leakage when sealing the garbage bag. The heating element 23 is a strip-shaped heating wire.

[0056] Specifically, the second position regulating groove 214 is provided along the longitudinal direction of the second clamping arm 2. When the heating element 23 is provided in the second position regulating groove 214, the extended portion of the heating element 23 protrudes from the heating and crimping plane 211.

[0057] In this embodiment, the design of the heating element 23 as a strip-shaped heating wire is advantageous for linear cutting of the garbage bag, thereby allowing the garbage bag to be divided into two at the cutting point. In addition, the contact area between the garbage bag and the heating element 23 is reduced, preventing damage to the garbage bag due to overheating.

[0058] Specifically, the cutting torch 10 is made of insulating material, except for the heating element 23. This effectively blocks the heat generated during the operation of the cutting torch 10 from being transferred to the external environment, thereby reducing damage to garbage bags and trash cans due to overheating. The heating element 23 is connected to the hot melt circuit.

[0059] As shown in Figure 13-14, the position regulating block 5 is provided with a slide groove 51 through which the flexible belt 6 slides. The flexible belt 6 is power-driven to the position regulating block 5 via the slide groove 51. A guide rail 422 is provided on the top plate 42 in the cavity 44 for the position regulating block 5 to slide on. A protrusion 52 is provided on the top of the position regulating block 5 that slides against the guide rail 422. The width of the guide rail 422 is greater than the diameter of the protrusion 52.

[0060] The design of the slide groove 51 allows the flexible belt 6 to slide smoothly and also restricts its displacement from the rail 45, thereby making the automatic winding and unwinding process of the flexible belt 6 smoother. In addition, the design of the position regulating block 5 is advantageous in that the flexible belt 6 is guided to be tightened within the cutting range of the cutter 10, thus avoiding leakage problems due to insufficient sealing of the garbage bag.

[0061] Specifically, it further includes an elastic member 8. One end of the elastic member 8 is fixedly connected to the top plate 42, and the other end is elastically connected to the protrusion 52. The elastic extension direction of the elastic member 8 is the same as the extension direction of the guide rail 422. The elastic member 8 is a spring.

[0062] A reaction force is generated in the stretched elastic member 8, which causes the position regulating block 5 to return along the guide rail 422.

[0063] Specifically, the flexible belt 6 engages with the slide groove 51 from top to bottom or bottom to top, and the width of the slide groove 51 is greater than the thickness of the flexible belt 6, thereby forming a gap between the flexible belt 6 and the slide groove 51.

[0064] When the flexible belt 6 is fitted into the slide groove 51, the movement speed of the flexible belt 6 when it is tightened is made faster than the movement speed of the position regulating block 5. As a result, the flexible belt 6 and the position regulating block 5 move simultaneously, thus ensuring the function of the position regulating block 5 while shortening the movement distance of the position regulating block 5, reducing the structural volume of the position regulating block 5, and saving mounting space for the position regulating block 5 structure.

[0065] As shown in Figure 4, the rail 45 is made up of multiple straight segments and / or arc segments connected in sequence, and the connection points between each straight segment and / or arc segment are arc-shaped.

[0066] Specifically, both the starting end 451 and the ending end 452 of the rail 45 are provided at an incline. The starting end 451 of the rail 45 gradually approaches the input opening 41 along the direction in which the rail 45 extends. The ending end 452 of the rail 45 gradually moves away from the input opening 41 along the direction in which the rail 45 extends. As a result, the area between the rail 45 and the inner boundary of the support section increases near the intersection as the rail 45 completes a full circle.

[0067] The end 452 of the rail 45 is connected to the inner wall of the side plate, thereby forming the inner wall of the side plate as an extension of the rail 45.

[0068] More specifically, a contact portion 47 is provided at the end 452 or extension of the rail 45. The drive wheel 7 that drives the reciprocating motion of the flexible belt 6 brings the flexible belt 6 into contact with the contact portion 47.

[0069] As shown in Figure 6-7, a first position regulating section 423 is provided on the side of the top plate 42 facing the rail 45, which is fitted to the starting end 451 and the end 452 of the rail 45. A second position regulating section 431 is provided on the side of the bottom plate 43 facing the rail 45, which is fitted to the starting end 451 and the end 452 of the rail 45. The portions of the flexible belt 6 corresponding to the starting end 451 and the end 452 of the rail 45 are sandwiched between the first position regulating section 423 and the second position regulating section 431, respectively.

[0070] Specifically, the connection point between the first position regulating section 423 and the top plate 42 is provided at an angle to form the first guide section 424, the connection point between the second position regulating section 431 and the bottom plate 43 is provided at an angle to form the second guide section 432, and the first guide section 424 and the second guide section 432 are provided opposite each other to form a trumpet-shaped guide opening 46.

[0071] In this embodiment, the guide opening 46 is used to guide the flexible belt 6 that tightens the garbage bag, thereby allowing the flexible belt 6 to position more smoothly between the first position restricting portion 423 and the second position restricting portion 431, improving the smoothness of the flexible belt 6 when tightening the garbage bag.

[0072] Specifically, the number of turns in which rail 45 rotates is 1. Or, the number of turns in which rail 45 rotates is greater than or less than 1.

[0073] Specifically, the drive wheel 7 is transmitted to a drive mechanism, and the drive wheel 7 is a toothed belt winding wheel. The flexible belt 6 is provided with a fitting portion that is transmitted to the drive wheel 7, thereby ensuring that the teeth on the toothed belt winding wheel can fit into the fitting portion. As a result, the toothed belt winding wheel can drive the reciprocating motion of the flexible belt 6 more smoothly and efficiently, and deviations from the control of the flexible belt 6 are avoided.

[0074] Specifically, the drive device is a drive motor, which is used to directly or indirectly drive the rotation of the drive wheel 7.

[0075] The input opening 41 has an annular structure with a through-hole in the middle. The cross-section of the annular structure may include circular, elliptical, or polygonal shapes.

[0076] In this embodiment, the shape of the box opening and input port 41 is limited to common shapes such as circular, elliptical, and square, but the shape of the box opening and input port 41 can be designed to any shape as needed for actual use and aesthetics.

[0077] Specifically, a box ring 9 is provided at the upper end of the top plate 42 inside the cavity 44, the box lid 3 is hinged to the box ring 9, and the box body is connected to the lower end of the bottom plate 43 inside the cavity 44. In this embodiment, the size of the box lid 3 and the box ring 9 are thinner and lighter than commercially available similar products of the same specifications, thus expanding the design space for the product's styling.

[0078] As shown in Figures 5, 8, 11, and 15, the process of using the automatic packaging trash can that closes the bag opening with a flexible belt in this embodiment is as follows.

[0079] The drive mechanism drives the rotation of the drive wheel 7. The drive wheel 7 drives the flexible belt 6, tightening it from the inside of the rail 45 to the cutting torch 10. The opening of the garbage bag is tightened to the cutting torch 10 by the flexible belt 6, and the drive of the flexible belt 6 causes the first clamping arm 1 to rotate around the rotation axis 421, driving the connecting end 16 to approach the second clamping arm and clamp the second clamping arm 2. The pressing plane 111 clamps the opening of the garbage bag toward the heating and sealing plane 211. The opening of the garbage bag containing garbage is cut by the heated wire, separating it from the rest of the garbage bag, the sealed portion of the garbage bag containing garbage fuses together, and the bottom of the rest of the garbage bag fuses together.

[0080] The drive mechanism drives the drive wheel 7 to rotate in the reverse direction. The drive wheel 7 drives the deployment of the flexible belt 6. The flexible belt 6 rotates the first clamping arm 1 in the reverse direction around the rotation axis 421, returning it to its original position. The flange is released from engagement with the locking opening. The second clamping arm 2 separates from the position regulating block 5. The flexible belt 6 gradually deploys along the rail 45. The opening of the garbage bag is released from the pressure.

[0081] It is clear to any person with ordinary skill in the art to which this invention pertains that various modifications or alterations can be conceived within the scope of the technical idea described in the claims, and these are also understood to naturally fall within the technical scope of this invention. Accordingly, this invention is not limited to the specific embodiments disclosed and described above, and several modifications and alterations of this invention are also included in the claims. Furthermore, some specific terms are used herein, but these terms are for illustrative purposes only and do not limit the invention in any way.

Claims

1. An automatic packaging trash can that closes the bag opening with a flexible belt, Including a box lid, a bag closing mechanism is further provided at the bottom of the box lid, an input opening is formed in the middle of the bag closing mechanism, and the opening of the garbage bag is located inside the input opening. The opening of the garbage bag passes through the middle of the bag sealing mechanism, the opening of the garbage bag is fitted into the opening, the bag body passes through the middle part of the bag sealing mechanism, the bag sealing mechanism is provided with an annular cavity surrounding the opening, the inside of the cavity is open and communicates with the opening of the garbage can, at least a support part is provided inside the cavity, and a lace is provided on the support part that rotates from the inside to the outside, The bag closing mechanism further includes a cutting torch, a position regulating block, a flexible belt, and a drive wheel provided within the cavity, wherein one end of the cutting torch is connected to one end of the flexible belt, the other end of the cutting torch is provided with the drive wheel, the other end of the flexible belt extends along the rail, passes through the position regulating block and is transmitted to the drive wheel, and the rotation of the drive wheel causes the flexible belt to be elastically wound up or unwound. An automatic garbage packaging bin, characterized in that when the flexible belt is wound from the inside of the rail to the cutting device, the cutting device, the position regulating block, and the flexible belt are enclosed and closed, the opening of the garbage bag is pulled towards the cutting device by the flexible belt, the cutting device presses on the opening of the bag and seals it with heat, and when the drive wheel rotates in the reverse direction, the cutting device separates from the position regulating block, the flexible belt unfolds along the rail, and the opening of the garbage bag is released from the pressure.

2. The cutting torch includes a first clamping arm and a second clamping arm, the first clamping arm including a connecting end and a hinge connecting end, the connecting end of the first clamping arm being connected to a flexible belt, the hinge connecting end of the first clamping arm being rotatably provided within the cavity, the second clamping arm being fixedly provided within the cavity, the second clamping arm being located on the side of the hinge connecting end of the first clamping arm, and the first clamping arm rotating around the hinge connecting end by the drive of the flexible belt, thereby rotating the first clamping arm relative to the second clamping arm to open and close it. The automatic garbage can packaging according to claim 1, characterized in that the second clamping arm includes an insulating base and a heating element, the insulating base is located on the side of the hinge connection end, the heating element is used to heat-seal the opening of the garbage bag, the insulating base has a heating and crimping surface on the side facing the opening of the bag, the heating and crimping surface is provided along the longitudinal direction of the second clamping arm, the heating element is provided on the heating and crimping surface, and the first clamping arm has a pressing surface on the side facing the garbage bag, the pressing surface is used to clamp together with the heating and crimping surface.

3. The cavity includes a top plate and a bottom plate, the top plate and the bottom plate being located on the upper and lower sides of the cavity, respectively, and the cavity being formed by being enclosed by the top plate and the bottom plate, the hinge connection end of the first clamping arm being rotatably connected to the top plate, the bottom plate being formed as the support portion, the first clamping arm having a pressing platform extending from the hinge connection end to the connection end, the pressing plane being formed on one side of the pressing platform, The bag closing mechanism includes a rotating shaft and a rotating groove, the rotating shaft is provided on the top plate, the first clamping arm has a rotating groove formed therein, and the rotating groove rotates around the rotating shaft. The automatic packaging trash can according to claim 2, characterized in that the first clamping arm is seven-shaped, the axis of the rotating groove moves away from the pressing platform in the direction of the second clamping arm, and the pressing plane and the plane passing through the axis of the rotating groove form a bend.

4. The second clamping arm has a flange provided at the end of the heat insulating base furthest from the first clamping arm, the flange is provided along the length of the second clamping arm, the height of the flange is less than the height of the heat insulating base, the position regulating block is provided with a locking opening through which the flange passes, the height of the flange is less than the height of the locking opening, and when the flange is fully locked into the locking opening, the flexible belt will not be tightened. The automatic packaging trash can according to claim 2, characterized in that the heating element is a strip-shaped heating wire.

5. The automatic packaging trash can according to claim 3, characterized in that the position regulating block is provided with a slide groove for the flexible belt to slide, the flexible belt is transmitted to the position regulating block via the slide groove, the top plate in the cavity is provided with a guide rail for the position regulating block to slide, the top of the position regulating block is provided with a protrusion that slides against the guide rail, and the width of the guide rail is greater than the diameter of the protrusion.

6. The automatic packaging trash can according to claim 5, further comprising an elastic member, the elastic member having one end fixedly connected to the top plate and the other end elastically connected to the protrusion, wherein the elastic extension direction of the elastic member is the same as the extension direction of the guide rail.

7. The automatic packaging trash can according to claim 5, characterized in that the flexible belt is inserted into the slide groove from top to bottom or bottom to top, the width of the slide groove is greater than the thickness of the flexible belt, thereby forming a gap between the flexible belt and the slide groove.

8. The automatic packaging trash can according to claim 1, characterized in that the rail is made up of a plurality of straight segments and / or arc segments connected in order, and the connection points between each straight segment and / or arc segment are arc-shaped.

9. The automatic packaging waste bin according to claim 1, characterized in that the starting end and ending end of the rail are both provided at an inclination, the starting end of the rail gradually approaches the input opening along the direction of extension of the rail, and the ending end of the rail gradually moves away from the input opening along the direction of extension of the rail.

10. The drive wheel is connected to a drive mechanism, the drive wheel is a toothed belt winding wheel, and the flexible belt is provided with a fitting portion that is connected to the drive wheel. The automatic packaging waste bin according to claim 1, characterized in that a box ring is provided at the upper end of the top plate in the cavity, and the box lid is hinged to the box ring.

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