Garbage bag shrinking machine core, garbage bin and control

Abstract

The present invention provides a garbage bag shrinking mechanism, comprising: a driving mechanism, including a power transmission component and a scissors-type hinge component; a first guide plate arranged on the scissors-type hinge component; a second guide plate arranged opposite to the first guide plate; the power transmission component is used to drive the scissors-type hinge component to extend and shrink, and then drive the first guide plate to slide relative to the second guide plate to achieve the shrinking and opening of the garbage bag mouth; a heat-sealing bag mouth device, which is arranged on the first guide plate and / or the second guide plate, and is used to heat-seal the shrunken garbage bag, realize the range-extending effect of the transmission through the scissors-type hinge component, reduce the operating energy consumption, and achieve the energy-saving effect.

Description

Technical Field

[0001] The invention relates to a garbage bag shrinking machine core, a garbage can and a control system, and is applied to the field of garbage cans. Background Art

[0002] In the design of trash cans, in order to prevent the odor of garbage, a lid or a device to tighten the mouth of the garbage bag is usually added to the trash can. With the advancement and development of science and technology, many trash cans have achieved automation, such as a device that can automatically tighten the bag mouth, and can also automatically pack and process garbage. A heat-sealing bag mouth device with application number CN201921355833.4, the transmission device of the device uses a motor gear to drive the synchronous wheel to move so as to achieve the function of heat sealing by the transmission heat sealing component. However, since the transmission device needs to move a long distance and time to achieve shrinkage, and the overall cost of this type of transmission device is relatively high, it is not conducive to the further application of trash cans. Since the frequency of automatic packaging and collection of trash cans is relatively high, the use of this transmission method requires a higher power energy. Replacing this device with a mechanism with a range-extending function can achieve energy-saving effects, thereby reducing energy consumption costs. This application designs a garbage bag shrinking movement for the above problem. Summary of the invention

[0003] The present invention provides a garbage bag shrinking mechanism, a garbage bin and a control system, which can effectively solve the above problems.

[0004] The present invention is achieved in that:

[0005] A garbage bag shrinking machine core, comprising:

[0006] A driving mechanism, including a power transmission assembly and a scissor hinge assembly;

[0007] The necking mechanism comprises a first guide plate arranged on the scissor hinge assembly and a second guide plate arranged opposite to the first guide plate;

[0008] A heat-sealing bag opening device, arranged on the first guide plate and / or the second guide plate;

[0009] Wherein, the power transmission assembly is used to drive the scissor-fork hinge assembly to extend and retract, thereby driving the first guide plate to slide relative to the second guide plate to achieve the tightening and opening of the garbage bag, and the power transmission assembly includes a second motor and a first gear connected to the second motor; the scissor-fork hinge assembly includes a fixing member, a guide groove arranged on the fixing member, a first rack accommodated in the guide groove and meshed with the first gear, and a scissor-fork hinge connected to the first rack, the scissor-fork hinge includes a plurality of scissor-fork groups, and the length of each scissor-fork group increases in a direction away from the first rack, and the scissor-fork hinge includes: a first scissor-fork group, which includes two first scissor-fork arms, and one end of the first scissor-fork arm is rotatably arranged on the first rack; a second scissor-fork group , it includes two cross-arranged second scissor arms, and a second through hole is provided at the intersection of each second scissor arm; one end of each second scissor arm is rotatably connected to the other end of each first scissor arm, and the fixing member further includes a first bolt, and the bolt is passed through the second through hole, so that the second scissor arm can swing around the first bolt to increase the range, the first guide plate and the second guide plate are both double-layer structures, the first guide plate includes an upper clamping plate and a lower clamping plate, and the second guide plate is provided with an upper clamping plate guide groove and a lower clamping plate guide groove respectively adapted to the upper clamping plate and the lower clamping plate, the upper clamping plate is slidably connected to the upper clamping plate guide groove to achieve the upper tightening of the garbage bag opening, and the lower clamping plate can be slidably connected to the lower clamping plate guide groove to achieve the lower tightening of the garbage bag opening.

[0010] A trash can, comprising:

[0011] The trash can body includes a trash bag storage port and a discharge port;

[0012] A bag storage device, arranged at the garbage bag storage opening and used for storing hollow garbage bags;

[0013] An automatic bag feeding device is arranged below the bag storage device;

[0014] And the garbage bag shrinking mechanism is arranged below the automatic bag feeding device.

[0015] As a further improvement, the following steps are included:

[0016] S10: fixing the garbage bag on the bag storage device;

[0017] S20: When the garbage is put in, the garbage bag is opened by the garbage bag shrinking mechanism;

[0018] S30: After the garbage is put in, the garbage bag is again shrunk by the garbage bag shrinking machine;

[0019] S40: When the garbage bag is full, the garbage bag is pulled out from the bag storage device by an automatic bag feeding device:

[0020] S50: The automatic bag feeding device is used to feed the bag a predetermined distance.

[0021] As a further improvement, the garbage bag shrinking mechanism further includes a heat-sealing bag opening device, which is arranged on the first guide plate and / or the second guide plate, and the control method further includes:

[0022] S60: heat-sealing the garbage bag through the shrinking mechanism.

[0023] The beneficial effects of the present invention are:

[0024] (1) The present application includes a driving mechanism, including a power transmission assembly and a scissors-type hinge assembly; a first guide plate arranged on the scissors-type hinge assembly; a second guide plate arranged opposite to the first guide plate; the power transmission assembly is used to drive the scissors-type hinge assembly to extend and retract, thereby driving the first guide plate to slide relative to the second guide plate to achieve the tightening and opening of the garbage bag opening; a heat-sealing bag opening device is arranged on the first guide plate and / or the second guide plate, and is used to heat-seal the tightened garbage bag, thereby achieving the range-extending effect of the transmission through the scissors-type hinge assembly, reducing the operating energy consumption, and achieving the energy-saving effect.

[0025] (2) When garbage is put in through the control method, the garbage bag shrinking mechanism opens the garbage bag. After the garbage is put in, the garbage bag shrinking mechanism shrinks the bag. When the garbage bag is full, the garbage bag shrinking mechanism heat-seals the bag to prevent the garbage can from rotting and facilitate heat-sealing and packing the garbage can. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure provided by the first embodiment of the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of a bag storage device provided in Embodiment 1 of the present invention.

[0029] Figure 3 This is a schematic diagram of the installation position of the garbage bag provided in the first embodiment of the present invention.

[0030] Figure 4It is a schematic diagram of the structure of the automatic bag feeding device provided in Example 1 of the present invention.

[0031] Figure 5 It is a partial structural schematic diagram of the automatic bag feeding device provided in Example 1 of the present invention.

[0032] Figure 6-7 It is a schematic diagram of the structure of a garbage bag shrinking mechanism provided in the first embodiment of the present invention.

[0033] Figure 8 yes Figure 7 Schematic diagram of the AA cross-section structure.

[0034] Fig. 9 It is a schematic diagram of the exploded structure of the driving mechanism provided in the first embodiment of the present invention.

[0035] Fig.10 It is a structural schematic diagram of the driving mechanism provided in the first embodiment of the present invention.

[0036] Fig.11 It is a schematic diagram of the structure of the second scissors-type group provided in the first embodiment of the present invention.

[0037] Fig.12 It is a schematic diagram of the heat sealing knife structure provided in the first embodiment of the present invention.

[0038] Fig.13 It is a structural schematic diagram of the driving mechanism provided in the second embodiment of the present invention.

[0039] In the figure: 1. Commode chair body 2. Collection device 21. Bag storage device 211. Hollow cylinder

[0040] 2111. Snap ring 2112. Rib 212. Chassis 2121. Edge

[0041] 213. Annular cover 2131. Clamping part 214. Sensor 22. Automatic bag feeding device 221. First motor 222. First gear set 223. Transmission shaft 224. Second gear set 225. Bag feeding wheel set 2251. First driving wheel 2252. First driven wheel

[0042] 226. Gear protection housing 227. Torsion spring assembly 2271. Straight notch 2272. Rotating shaft 2273. Arc stopper 2274. Torsion spring 2275. Torsion spring stopper

[0043] 23. Driving mechanism 231. Power transmission assembly 232. Scissor hinge assembly

[0044] 2311. Second motor 2312. First gear 2321. Fixing member

[0045] 23210.First bolt 23211.Guide groove 23212.Fixing hole

[0046] 2322. First rack 2323. Scissor hinge

[0047] 2323a. First scissor set 2323a1. First scissor arm 2323b. Second scissor set

[0048] 2323b1. Second scissor arm 2323b2. Second through hole 2323c. Third scissor group

[0049] 2323c1. Third scissor arm 2323c2. Third through hole 2323c3. Second bolt

[0050] 2323d. Fourth scissor set 2323d1. Fourth scissor arm 2323d2. Fourth long through hole

[0051] 2323d3. The third bolt

[0052] 24. Narrowing mechanism 241. First guide plate 242. Second guide plate

[0053] 2411. Upper clamping plate 2412. Lower clamping plate 2421. Upper clamping plate guide groove

[0054] 2422. Lower clamping plate guide groove 243. Guide shaft 2431. First spring group

[0055] 2432. Second spring group

[0056] 25. Heat sealing bag opening device 251. First heat sealing knife 252. Second heat sealing knife

[0057] 2511. Heat sealing knife base plate 26. Unloading plate 3. Garbage bag DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0059] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] Embodiment 1:

[0061] Reference Figure 1 As shown, a trash can comprises: a trash can body 1, the trash can body 1 comprises a trash bag storage port and a discharge port, and the shape and structure of the trash can body 1 are not limited and can be selected according to actual needs. For example, it can be a cuboid or a cube. In one embodiment, the trash can body 1 is a cuboid, and the trash bag storage port is arranged at the top of the cuboid, the discharge port is arranged at the side wall of the cuboid (not marked in the figure), and a collecting device 2 is arranged at the lower part of the trash can body 1. The collecting device 2 includes: a bag storage device 21, which is used to provide a hollow garbage bag 3; an automatic bag feeding device 22, which is arranged at the bottom of the bag storage device 21, and is used to clamp the two sides of the garbage bag 3 and transfer the garbage bag 3 downward; a garbage bag shrinking movement, which includes a driving mechanism 23, the driving mechanism 23 includes a power transmission assembly 231 and a scissor hinge assembly 232, a shrinking mechanism 24, a first guide plate 241 arranged on the scissor hinge assembly 232; a second guide plate 242 arranged opposite to the first guide plate 241; and a heat-sealing bag opening device 25, which is arranged at the bottom of the shrinking mechanism 24, and is used to seal the garbage bag 3. The garbage can can realize the functions of automatic bag feeding, automatic collection, and then automatic packaging and heat-sealing garbage. The garbage bag shrinking garbage can also has the characteristics of being easy to carry, suitable for outdoor carrying or use by children and middle-aged and elderly people.

[0062] Reference Figure 2-3As shown, the bag storage device 21 includes: a hollow cylinder 211, which is used to put on the hollow garbage bag 3; a bottom plate 212 extending horizontally outward from the bottom end of the hollow cylinder 211, and the bottom plate 212 is fixed on the garbage can body 1; an annular cover 213 buckled on the top of the hollow cylinder 211; wherein, one end of the garbage bag 3 passes through the annular cover 213 from the outside of the hollow cylinder 211 and enters the inside of the hollow cylinder 211. The chassis 212 also includes a rim 2121, which is arranged longitudinally and upwardly along the edge of the chassis 212, so that the garbage bag 3 will not move outward during use; there is another bagging method in this device, that is, the bag storage device 21 is not applicable, and a folded soft bag is used to be covered in the annular groove of the movement base, and the annular cover 213 is buckled on the annular groove. Preferably, the height of the rim 2121 is 15mm to 25mm; in this embodiment, the height of the rim 2121 is 22mm. The other end of the hollow cylinder 211 is extended inwardly to be provided with a snap ring 2111; the annular cover 213 also includes a snap-on portion 2131 that cooperates with the snap ring 2111. Ribs 2112 are evenly and vertically arranged on the side wall of the hollow cylinder 211. The bag storage device 21 further includes a sensor 214, which is arranged on the surface of the chassis 212 close to the annular cover 213, for detecting the supply status of the garbage bag 3. Preferably, the thickness of the garbage bag 3 consumable material is 0.005 mm to 0.2 mm; more preferably, the thickness of the garbage bag 3 consumable material is 0.01 mm to 0.03 mm; in this embodiment, the thickness of the garbage bag 3 consumable material is 0.01 mm.

[0063] Reference Figure 4-5As shown, the automatic bag feeding device 22 includes: a first motor 221; a first gear set 222 connected to the first motor 221; a transmission shaft 223 disposed on the first gear set 222; a second gear set 224 connected to the transmission shaft 223, and the second gear set 224 is symmetrically arranged with the first gear set 222, each gear set includes a driving gear and a driven gear matched with the driving gear; a bag feeding wheel set 225, symmetrically arranged on the first gear set 222 and the second gear set 224, and each bag feeding wheel set 225 includes a first driving wheel 2251 disposed on the driving gear and a first driven wheel 2252 disposed on the driven gear, and the first driving wheel 2251 and the first driven wheel 2252 in each bag feeding wheel set 225 are tangent. The first driving wheel 2251 and the first driven wheel 2252 are arranged on the same plane. The automatic bag feeding device 22 further includes a gear mounting housing 226, which is respectively covered on the first gear set 222 and the second gear set 224. The torsion spring assembly 227 includes a straight notch 2271 provided at one end of the gear mounting housing away from the driving gear, the first driven wheel 2252 is connected to the driven gear through a rotating shaft 2272 penetrating the straight notch 2271, an arc-shaped stopper 2273 is sleeved on the rotating shaft 2272, a torsion spring 2274 is provided below the rotating shaft 2272, the torsion spring 2274 abuts against the arc-shaped stopper 2273 to achieve a slight displacement of the first driven wheel 2252, thereby fixing the garbage bag 3, the gear mounting housing 226 also includes a torsion spring stopper 2275 provided below the straight notch 2271, one end of the torsion spring 2274 abuts against the torsion spring stopper 2275 The other end of the block 2275 abuts against the arc-shaped block 2274. During the bagging process, since it is necessary to use the bagging correction device to clamp one end of the garbage bag 3 in the bag feeding wheel group 225, the automatic bag feeding device 22 is set, and the driven gear can achieve a slight downward displacement, thereby generating a gap between the first driving wheel 2251 and the first driven wheel 2252, so that the bagging correction device can enter between the first driving wheel 2251 and the first driven wheel 2252, that is, the garbage bag 3 is placed in the bag feeding wheel group 225, and then the bagging correction device is taken out, the torsion spring 229 drives the first driven wheel 2252 to reset, and the bag feeding wheel group 225 clamps the garbage bag 3.

[0064] The steps for replacing the garbage bag 3 of the present invention are as follows: after the garbage bag 3 is used, the annular cover 213 is separated from the hollow cylinder 211, a new garbage bag 3 is taken and placed on the hollow cylinder 211, and then the annular cover 213 is buckled with the hollow cylinder 211, and one end of the garbage bag 3 is pulled up from the outside of the hollow cylinder 211 to bypass the annular cover 213 and enter the inside of the hollow cylinder 211. Use the bagging correction device to place one end of the garbage bag 3 in the bag delivery wheel group 225, and then take out the bagging correction device, and the present invention can continue to be used. When using a soft bag, remove the annular cover 213 from the movement base, put the soft bag into the movement annular groove, and then buckle the annular cover 213, pull up the soft bag to bypass the annular cover and place it in the bag delivery wheel group 225 to fix the soft bag.

[0065] Reference Figure 6 to Figure 11 As shown, a garbage bag shrinking machine core includes the driving mechanism 23 including:

[0066] The driving mechanism 23 includes a power transmission assembly 231 and a scissor hinge assembly 232; the shrinking mechanism 24 includes a first guide plate 241 arranged on the scissor hinge assembly 232, and a second guide plate 242 arranged opposite to the first guide plate 241; and a heat-sealing bag opening device 25, which is arranged on the first guide plate 241 and / or the second guide plate 242 and is used to heat-seal the tightened garbage bag 3; wherein the power transmission assembly 231 is used to drive the scissor hinge assembly 232 to extend and shrink, thereby driving the first guide plate 241 to slide relative to the second guide plate 242 to achieve the shrinking and opening of the garbage bag 3.

[0067] The power transmission assembly 231 includes a second motor 2311 and a reducer (not numbered in the figure) connected to the second motor 2311, the second motor 2311 is connected to the first gear 2312, the scissors hinge assembly includes a fixing member 2321, the fixing member 2321 is provided with a guide groove 23211, the first rack 2322 is slidably connected to the guide groove 23211, the first gear 2312 is engaged with the first rack 2322, the first rack 2322 is connected to the scissors hinge 2323, the fixing member 2321 is provided with a smooth wheel 2324 at one end away from the first gear 2312, the The smooth wheel 2324 abuts the first rack 2322, so that the first rack 2322 runs more stably, and prevents the first rack 2322 from jumping vertically under force, causing unsmooth movement or increasing the wear of the first rack 2322. In other embodiments, the first rack is further fixed by a gear. At this time, meshing teeth are set on both sides of the first rack 2322, and the stability of the first rack 2322 is increased by a two-way gear fixing method. The scissor hinge 2323 includes: 2 to 6 groups of scissor groups, and the length of each scissor group increases in the direction away from the first rack 2322. Preferably, the scissor hinge 2323 includes: 3-5 groups of scissor groups. This is because on the one hand, if the number is too small, the range increase is not obvious and it is difficult to achieve effective shrinkage. On the other hand, if the number is too large, it is easy to cause the mechanism to be unstable. In one embodiment, the scissor hinge 2323 includes: 4 groups of scissor groups. Specifically, the scissor hinge 2323 includes: a first scissor set 2323a, which includes two first scissor arms 2323a1, and one end of the first scissor arm 2323a1 is rotatably arranged on the first rack 2322;

[0068] The second scissor assembly 2323b includes two second scissor arms 2323b1 arranged crosswise, and a second through hole 2323b2 is arranged at the intersection of each second scissor arm 2323b1; one end of each second scissor arm 2323b1 is rotatably connected to the other end of each first scissor arm 2323a1, and the fixing member 2321 further includes a first bolt 23210, and the first bolt 23210 is passed through the second through hole 2323b2, so that the second scissor arm 2323b1 can rotate around the first The bolt 23210 swings to increase the range, and the second through hole 2323b2 is set at the second scissor arm 2323b1 close to one end of the first scissor group 2323a, dividing the second scissor arm 2323b1 into a second front scissor arm 2323b11 and a second rear scissor arm 2323b12, that is, the length of the second front scissor arm 2323b11 is less than the second rear scissor arm 2323b12. At this time, when the first rack 2322 is moved, the angle A between the second front scissor arm 2323b11 and the second rear scissor arm 2323b12 is The angle B between the fork arms 2323b12 is equal. Since the length of the second front scissor arm 2323b11 is smaller than that of the second rear scissor arm 2323b12, according to the triangle theorem, the horizontal movement distance of the second rear scissor arm 2323b12 is greater than that of the second front scissor arm 2323b11, thereby achieving a range extension effect. When the first bolt 23210 fixes the second through hole 2323b2, the stability of the scissor hinge 2323 is significantly improved. The third scissor group 2323c includes two cross-arranged third A scissors arm 2323c1 and a second bolt 2323c3, and a third through hole 2323c2 is provided at the intersection of each third scissors arm 2323c1; one end of each third scissors arm 2323c1 is rotatably connected with the other end of each second scissors arm 2323b1, and the second bolt 2323c3 is passed through the third through hole 2323c2. The third scissors arm has a conduction effect, and a plurality of third scissors groups 2323c can be provided. In the present embodiment, one group of the third scissors group 2323c is provided.

[0069] The fourth scissor fork group 2323d includes two cross-arranged fourth scissor fork arms 2323d1 and a third bolt 2323d3, and a fourth long strip through hole 2323d2 is arranged at the intersection of each fourth scissor fork arm 2323cd1; one end of each fourth scissor fork arm 2323d1 is rotatably connected to the other end of each third scissor fork arm 2323c1, and the third bolt 2323d3 is penetrated in the fourth long strip through hole 2323d2. According to the working principle of the scissor fork hinge, in order to realize that the fourth scissor fork arm 2323d1 is rotatably connected to the first guide plate 241 away from one end of the third scissor fork group 2323c, the displacement of the scissor fork hinge 2323 is increased. Dynamic stability, therefore, the fourth long through hole 2323d2 is provided to realize the angle change between the fourth scissors fork arm 2323d1 so as to realize the movement of the scissors fork hinge 2323, and the fourth scissors fork arm 2323d1 also has a limiting function, which limits the movement of the scissors fork hinge 2323 within the length range of the fourth long through hole 2323d2, and utilizes the stability of the scissors fork hinge 2323 to ensure the stability of the reciprocating motion; the present invention utilizes the length of each scissors fork group of the scissors fork hinge 2323 to increase gradually in the direction away from the first rack 2322, thereby reflecting the range-increasing effect of the driving mechanism 23, reducing the rotation of the second motor 2311 during each sealing, and achieving the effect of energy saving.

[0070] Reference Figure 6 to Figure 9As shown, the shrinking mechanism 24 includes a first guide plate 241 arranged on the scissor hinge assembly 232, and a second guide plate 242 arranged opposite to the first guide plate 241. The first guide plate 241 slides toward the second guide plate 242 to achieve the tightening of the garbage bag mouth. The first guide plate 241 and the second guide plate 242 are both double-layer structures. The first guide plate 241 includes an upper clamping plate 2411 and a lower clamping plate 2412. The second guide plate 242 is provided with an upper clamping plate guide groove 2421 and a lower clamping plate guide groove 2422 respectively adapted to the upper clamping plate 2411 and the lower clamping plate 2412. The clamping plate 2411 is slidably connected to the upper clamping plate guide groove 2421 to achieve the upper tightening of the garbage bag opening, and the lower clamping plate 2412 can be slidably connected to the lower clamping plate guide groove 2422 to achieve the lower tightening of the garbage bag opening, so as to more accurately seal the garbage bag 3, and the guiding function of the first guide plate 241 and the second guide plate 242 is used to increase the stability of the garbage bag sealing, the guide shaft 243 of the positioning hole, the first spring group 2431 arranged at one end of the guide shaft 243 close to the first guide plate 241, and the second spring group 243 arranged at one end of the guide shaft 243 close to the second guide plate 242 2. In the initial state, the scissor hinge assembly 232 and the power transmission assembly 231 are in a tightened state, the first guide plate 241 compresses the first spring group 2431, and when the power transmission assembly 231 drives the scissor hinge assembly 232 to extend, the first guide plate 241 pushes the first guide plate 241 tightly under the elastic force of the first spring group 2431, thereby eliminating the movement caused by the gap between the scissor hinge assemblies 232, so that the scissor hinge assembly 232 is in a stable state during operation. If the first spring group 2431 is not used to eliminate the gap, when the power transmission assembly 231 is started, the scissor hinge assembly 232 is in a stable state due to the gap. The reason why there is a gap between the fork hinge assemblies 232 is that the scissors-fork hinge assembly 232 does not start to move until the gap is eliminated by movement, that is, the movement of the scissors-fork hinge assembly 232 will lag behind, causing the scissors-fork hinge assembly 232 to move unsmoothly, affecting the transmission of the equipment. When the first guide plate 241 and the second guide plate 242 are in contact, the second guide plate 242 compresses the second spring group 2432 to buffer the force between the heat-sealing bag opening device. After the heat sealing is completed, the power transmission assembly 231 drives the scissors-fork hinge assembly 242 to retract, and the second spring group 2432 pushes the second guide plate 242 tightly to assist in unloading.

[0071] Reference Figure 6 to Figure 12As shown, in one embodiment, the heat sealing bag opening device 25 comprises: a first heat sealing knife 251 and a second heat sealing knife 252 arranged opposite to the first heat sealing knife 251, the second heat sealing knife is used to move toward the first heat sealing knife 251 under the drive of the driving mechanism 23 so as to heat seal the tightened garbage bag opening. Each heat sealing knife comprises a heat sealing knife base plate 2511 and a heat sealing blade 2512 vertically connected to the heat sealing knife base plate 2511, the first heat sealing knife base plate 2511 is arranged between the upper clamping plate guide groove 2411 and the lower clamping plate guide groove 2412 arranged on the first guide plate 241, the second heat sealing knife base plate is fixed between the upper clamping plate 2421 and the lower clamping plate 2422 of the second guide plate 242, and the heat sealing device further comprises a heating wire (not shown in the figure), and the heating wire is arranged on the inner side of the heat sealing knife base plate 2411.

[0072] The use effect of the present invention: the use of soft bags or bag storage devices 21 realizes convenient use and quick replacement of garbage bags 3; the symmetrically arranged automatic bag feeding devices 22 realize synchronous bag feeding on both sides, ensuring the consistency of movement of the garbage bags 3; the shrinking mechanism 24 realizes that the bag mouth of the garbage bag can be shrunk when the garbage bin is used once; the heat-sealing bag mouth device 25 heat-seals the bag mouth of the garbage bag 3 after the bag mouth is shrunk, completes the heat-sealed packaging of the garbage bag 3, and prevents excrement from overflowing, and a straight notch 2271 is provided at one end of the gear mounting housing 226 away from the first motor 221, and the first driven wheel 2252 is connected to the driven gear 2222 through the straight notch 2271 through the rotating shaft 2272, and an arc-shaped stopper 2273 is sleeved on the rotating shaft 2272, and a torsion spring 2274 is provided below the rotating shaft 2272, and the torsion spring 2274 abuts against the arc-shaped stopper 2273 to realize a slight displacement of the first driven wheel 2252, thereby fixing the garbage bag 3. Furthermore, the present invention also utilizes the scissors-fork hinge 2323 to increase the length of each scissors-fork group in the direction away from the first rack 2322, thereby realizing the range-increasing effect of the driving mechanism 23, reducing the rotation of the second motor 2311 during each sealing, and achieving energy-saving effects. Moreover, this transmission method of the present invention can also greatly reduce the overall cost compared with the existing method. Furthermore, the guiding functions of the first guide plate 241, the second guide plate 242 and the guide shaft 243 are used to increase the stability of the garbage bag sealing, and the elastic force of the first spring group 2431 pushes the first guide plate 241 tightly, thereby eliminating the movement caused by the gap between the scissor hinge assemblies 232, so that the scissor hinge assemblies 232 are in a stable state during operation. The second spring group 2432 is used to buffer the force between the heat-sealing bag opening devices 25 to prevent the excessive force between the heat-sealing bag opening devices 25 from melting the garbage bag opening to break and forming a gap, causing the garbage bag 3 to emit odor. After the heat sealing is completed, the power transmission assembly 231 drives the scissor hinge assembly 242 to retract, and the second spring group 2432 pushes the second guide plate 242 tightly to prevent the heat-sealed garbage bag 3 from sticking to the second guide plate, thereby assisting in unloading.

[0073] The present invention also includes a method for controlling a trash can, comprising the following steps:

[0074] S10: Fix the garbage bag on the bag storage device; the steps include: taking a new garbage bag 3 and putting it on the hollow cylinder 211, then buckling the annular cover 213 with the hollow cylinder 211, pulling up one end of the garbage bag 3 from the outside of the hollow cylinder 211, bypassing the annular cover 213 and entering the inside of the hollow cylinder 211, using a bag correction device to place one end of the garbage bag 3 in the bag feeding wheel group 225, and then taking out the bag correction device; if a soft bag is used, remove the annular cover 213 from the movement base, put the soft bag into the annular groove of the movement, and then buckle the annular cover 213, pull up the soft bag to bypass the annular cover and place it in the bag feeding wheel group 225 to fix the soft bag.

[0075] S20: When the garbage is put in, the garbage bag is opened by the garbage bag shrinking mechanism;

[0076] S30: After the garbage is put in, the garbage bag is again shrunk by the garbage bag shrinking mechanism; the garbage is put in by the sensor, and the garbage bag is sealed by the shrinking mechanism to prevent the garbage can from emitting stench.

[0077] S40: When the garbage bag is full, the garbage bag is stretched out from the bag storage device by an automatic bag feeding device: when the sensor senses that the garbage bin is full, the automatic bag feeding device 22 can be started, the bag feeding wheel sets 225 on both sides clamp the garbage bag 3 or soft bag, and the first motor 221 drives the first gear set 222 and the second gear set 224 to synchronously pull the garbage bag downward and away from the hollow cylinder 211.

[0078] S50: The automatic bag feeding device feeds the garbage bag a predetermined distance, where the garbage bag opening is within the working range of the shrinking mechanism 24 of the garbage bag shrinking mechanism.

[0079] S60: The garbage bag shrinking mechanism is used for heat sealing. The second motor 2311 drives the scissor hinge 2323 and then drives the first guide plate 241 to slide relative to the second guide plate 242 to shrink the garbage bag opening 3 and open the heat-sealing bag opening device 25 to heat-seal the garbage bag 3 after shrinking the bag opening, thereby completing the heat-sealing packaging of the garbage bag 3 to prevent the odor of the garbage from being emitted.

[0080] Embodiment 2:

[0081] Reference Fig.13As shown, this embodiment is basically the same as the first embodiment, except that the power transmission assembly 231 includes a first cylinder 2313 connected to the second shearing group 2323b; the second shearing arm 2323b1 further includes a fifth through hole 2323b13 arranged at the end of the second front scissor arm 2323b11 away from the second through hole 23232, wherein the fifth through hole 2323b13 of one of the second shearing arms 2323b1 is connected to the first cylinder 2313, and the first bolt 23210 is passed through the fifth through hole 2323b13 of the other second shearing arm 2323b1, so as to improve the stability of the scissor hinge 2323. This embodiment simplifies the structure of the driving mechanism 23, and utilizes the stability of the first cylinder 2313 to drive the scissor hinge 2323, thereby avoiding problems such as unstable transmission and poor sealing effect caused by the large fitting tolerance of the first rack 2322.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A garbage bag shrinking machine, characterized in that: include: A driving mechanism, including a power transmission assembly and a scissor hinge assembly; The necking mechanism comprises a first guide plate arranged on the scissor hinge assembly and a second guide plate arranged opposite to the first guide plate; A heat-sealing bag opening device, arranged on the first guide plate and / or the second guide plate; Wherein, the power transmission assembly is used to drive the scissor-fork hinge assembly to extend and retract, thereby driving the first guide plate to slide relative to the second guide plate to achieve the tightening and opening of the garbage bag, and the power transmission assembly includes a second motor and a first gear connected to the second motor; the scissor-fork hinge assembly includes a fixing member, a guide groove arranged on the fixing member, a first rack accommodated in the guide groove and meshed with the first gear, and a scissor-fork hinge connected to the first rack, the scissor-fork hinge includes a plurality of scissor-fork groups, and the length of each scissor-fork group increases in a direction away from the first rack, and the scissor-fork hinge includes: a first scissor-fork group, which includes two first scissor-fork arms, and one end of the first scissor-fork arm is rotatably arranged on the first rack; a second scissor-fork group , it includes two cross-arranged second scissor arms, and a second through hole is provided at the intersection of each second scissor arm; one end of each second scissor arm is rotatably connected to the other end of each first scissor arm, and the fixing member further includes a first bolt, and the bolt is passed through the second through hole, so that the second scissor arm can swing around the first bolt to increase the range, the first guide plate and the second guide plate are both double-layer structures, the first guide plate includes an upper clamping plate and a lower clamping plate, and the second guide plate is provided with an upper clamping plate guide groove and a lower clamping plate guide groove respectively adapted to the upper clamping plate and the lower clamping plate, the upper clamping plate is slidably connected to the upper clamping plate guide groove to achieve the upper tightening of the garbage bag opening, and the lower clamping plate can be slidably connected to the lower clamping plate guide groove to achieve the lower tightening of the garbage bag opening.

2. A garbage bag shrinking machine according to claim 1, characterized in that: The scissor hinge also includes: A third scissor assembly, comprising two cross-arranged third scissor arms and a second bolt, wherein a third through hole is arranged at the intersection of each third scissor arm; one end of each third scissor arm is rotatably connected to the other end of each second scissor arm, and the second bolt is passed through the third through hole; The fourth scissors set includes two cross-arranged fourth scissors arms and a third bolt, and a fourth elongated through hole is arranged at the intersection of each fourth scissors arm; one end of each fourth scissors arm is rotatably connected to the other end of each third scissors arm, and the third bolt is passed through the fourth elongated through hole.

3. A garbage bag shrinking machine core according to claim 2, characterized in that: Both sides of the first guide plate and the second guide plate are provided with positioning holes, guide shafts accommodated in the positioning holes, a first spring group arranged at one end of the guide shaft close to the first guide plate, and a second spring group arranged at one end of the guide shaft close to the second guide plate. In the initial state, the scissor hinge group and the power transmission assembly are in a tightened state, and the first guide plate compresses the first spring group. When the power transmission assembly drives the scissor hinge assembly to extend, the first guide plate pushes the first guide plate tightly under the elastic force of the first spring group, thereby eliminating the movement caused by the gap between the scissor hinge assemblies, so that the scissor hinge assembly is in a stable state during operation. When the first guide plate and the second guide plate are in contact, the second guide plate compresses the second spring group to buffer the action force between the heat-sealing bag opening devices. After the heat sealing is completed, the power transmission assembly drives the scissor hinge assembly to retract, and the second spring group pushes the second guide plate tightly to assist in unloading.

4. A trash can, characterized in that: include: The trash can body includes a trash bag storage port and a discharge port; A bag storage device, arranged at the garbage bag storage opening and used for storing hollow garbage bags; An automatic bag feeding device is arranged below the bag storage device; And a garbage bag shrinking mechanism comprising any one of claims 1 to 3, which is arranged below the automatic bag feeding device.

5. A method for controlling a trash can as claimed in claim 4, characterized in that: The steps include: S10: fixing the garbage bag on the bag storage device; S20: When the garbage is put in, the garbage bag is opened by the garbage bag shrinking mechanism; S30: After the garbage is put in, the garbage bag is again shrunk by the garbage bag shrinking machine; S40: When the garbage bag is full, the garbage bag is pulled out from the bag storage device by an automatic bag feeding device: S50: The automatic bag feeding device is used to feed the bag a predetermined distance.

6. A method for controlling a trash can according to claim 5, characterized in that: The garbage bag shrinking mechanism further includes a heat-sealing bag opening device, which is arranged on the first guide plate and / or the second guide plate, and the control method further includes: S60: heat-sealing the garbage bag through the shrinking mechanism.

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