An automatic medical waste trash can

Abstract

The application discloses an automatic medical waste garbage can, which comprises a can body, a box body and a heat sealing assembly. The top surface of the can body is vertically provided with a first containing cavity for containing medical waste. At least three pulling hooks are slidably arranged on the side wall surface of the first containing cavity. The can body is provided with a lifting mechanism for driving the pulling hooks to move vertically and linearly synchronously. The lifting mechanism drives the pulling hooks to rotate relative to the can body through a first transmission mechanism. The hook sleeve on the bag opening of the garbage bag is located on the rotating track of the hook claw end of the corresponding pulling hook. The box body is internally provided with a second containing cavity for containing the garbage bag. The can body is provided with a conveying assembly for conveying the garbage bag in the second containing cavity to the can body. The heat sealing assembly is used for heat sealing the bag opening of the garbage bag. The application can realize automatic replacement of the garbage bag in the can body and improve the convenience and safety of garbage bag replacement.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of garbage cans, in particular to an automatic medical waste garbage can. BACKGROUND

[0002] Medical waste has great danger, because medical staff or cleaning staff directly contact the garbage can during the process of replacing the garbage bag of the garbage can containing medical waste, there is a great safety hazard, and after the garbage bag containing medical waste is taken out of the garbage can, sealing operation is still needed, there is a risk of contacting medical waste, and the operation process takes a long time, which greatly increases the safety risk. SUMMARY

[0003] The purpose of the present application is to provide an automatic medical waste garbage can, which can realize automatic replacement of the garbage bag therein and improve the convenience and safety of garbage bag replacement.

[0004] The technical scheme adopted by the present application to solve the above problems is:

[0005] An automatic medical waste garbage can, comprising:

[0006] A barrel body, a first containing cavity for containing medical waste is vertically provided on the top surface of the barrel body, at least three pulling hooks are slidingly arranged on the side wall surface of the first containing cavity, a lifting mechanism for driving the pulling hooks to move vertically and linearly synchronously is arranged on the barrel body, the lifting mechanism drives the pulling hooks to rotate relative to the barrel body through a first transmission mechanism, and the hook sleeve on the bag opening of the garbage bag is located on the rotation track of the hook claw end of the corresponding pulling hook;

[0007] A box body, a second containing cavity for containing the garbage bag is provided in the box body, the box body is inserted and fixed on the bottom of the barrel body and located below the first containing cavity, and a conveying assembly for conveying the garbage bag in the second containing cavity to the barrel body is arranged on the barrel body;

[0008] A heat sealing assembly for heat sealing the bag opening of the garbage bag.

[0009] As a further improvement of the above technical solution, the lifting mechanism comprises a lifting ring and a plurality of pulling units, the lifting ring is slidingly arranged on the barrel, the lifting ring is provided with a plurality of connecting seats corresponding to the pulling hooks, the pulling hooks are rotatably arranged on the connecting seats, the number of the pulling units is the same as that of the pulling hooks, the pulling unit comprises a pulling line, a first pulley, a second pulley and a take-up wheel, the pulling line is wound on the first pulley, the second pulley and the take-up wheel in sequence, and the two ends of the pulling line are fixed on the lifting ring and the take-up wheel respectively, the first pulley is rotatably arranged on the top of the barrel, the second pulley and the take-up wheel are rotatably arranged on the bottom of the barrel, the adjacent take-up wheels are drivingly connected through a bevel gear transmission mechanism, and the barrel is provided with a first motor for driving any one of the take-up wheels to rotate.

[0010] As a further improvement of the above technical solution, the second pulley and the take-up wheel are provided with an adjusting mechanism, the adjusting mechanism comprises a sliding seat and a roller, the sliding seat is slidingly arranged on the barrel, the top surface of the sliding seat is provided with a through hole for the pulling line to pass through, the bottom surface of the sliding seat is provided with a protrusion, the roller is rotatably arranged on the barrel, the roller is provided with two screw grooves for the protrusion to slide, the two screw grooves have the same pitch and opposite rotation directions, and the roller and the take-up wheel are drivingly connected through a gear transmission mechanism.

[0011] As a further improvement of the above technical solution, the first transmission mechanism comprises a guide rail and a driving gear, the guide rail is fixed on the barrel and penetrates the connecting seat, the driving gear is rotatably arranged on the connecting seat, the top and bottom of the guide rail are respectively provided with a first rack and a second rack capable of engaging with the driving gear, and the driving gear is drivingly connected with the pulling hook through a bevel gear transmission mechanism and a worm gear transmission mechanism.

[0012] As a further improvement of the above technical solution, the conveying assembly comprises a first pushing module for driving the vertical linear movement of the garbage bag and a second pushing module for driving the horizontal linear movement of the garbage bag, the first pushing module comprises a first pushing member and a first screw rod, the first pushing member is L-shaped and is slidingly arranged on the barrel body, the first screw rod is rotationally arranged on the barrel body, the barrel body is provided with a second motor for driving the rotation of the first screw rod, the transverse section of the first pushing member is threadedly sleeved on the first screw rod, the top surface and the bottom surface of the inner end of the box body are respectively provided with a bag outlet and a first through hole at opposite positions, the bag outlet and the first through hole are in communication with the second accommodating cavity, the first through hole is located on the movement track of the longitudinal section of the first pushing member, the bottom surface of the first accommodating cavity is provided with a guide channel, the first accommodating cavity is in communication with the bag outlet through the guide channel, the second pushing module comprises a second pushing member and a second screw rod, the second pushing member is of a telescopic structure and is slidingly arranged on the barrel body, the second screw rod is rotationally arranged on the barrel body, the barrel body is provided with a third motor for driving the rotation of the second screw rod, the second pushing member is threadedly sleeved on the second screw rod, the top surface of the outer end of the box body is provided with a second through hole, the second through hole is located on the telescopic track of the second pushing member, the top surface of the box body is provided with a sliding hole in the movement direction of the second pushing member, and the sliding hole is in communication with the second through hole.

[0013] As a further improvement of the above technical solution, the second pushing member comprises a connecting portion and a telescopic portion, the connecting portion is slidingly arranged on the barrel body and is threadedly sleeved on the second screw rod, the telescopic portion is sleeved on the connecting portion and is provided with a spring therebetween, the two ends of the spring are respectively abutted against the telescopic portion and the connecting portion, the telescopic portion is provided with a protrusion for abutting against the garbage bag, a pushing piece is vertically slidingly arranged on the barrel body, the outer end of the pushing piece is exposed on the outer side surface of the barrel body, and the inner end of the pushing piece is fixed to the telescopic portion.

[0014] As a further improvement of the above technical solution, the heat sealing assembly comprises a first rod group and a second rod group, the first rod group and the second rod group are arranged in a vertical manner, the first rod group comprises at least two rotating rods, the second rod group comprises at least one rotating rod, the side surface of the first accommodating cavity is provided with a receiving groove for accommodating the rotating rods, the rotating rods are horizontally rotationally arranged in the receiving groove, the barrel body is provided with a fourth motor for driving any one of the rotating rods in the second rod group to rotate, the rotating rods on the first rod group and the second rod group are arranged in an annular alternating staggered manner, any one of the rotating rods in the first rod group is provided with a heating strip, and the adjacent two rotating rods are transmissionally connected through a second transmission mechanism.

[0015] As a further improvement of the above technical solution, the second transmission mechanism comprises a synchronous belt transmission mechanism, and the two synchronous pulleys of the synchronous belt transmission mechanism are respectively transmissionally connected with the two adjacent rotating rods through a gear transmission mechanism.

[0016] As a further improvement of the above technical solution, a plurality of first grooves for accommodating the pulling hooks are vertically formed on the first accommodating cavity, the first grooves correspond to the pulling hooks one by one, a second groove for accommodating the bag opening edge of the garbage bag is formed on the first accommodating cavity, the second groove is annular and communicates with the first grooves, and the second groove is located above the heat sealing assembly.

[0017] As a further improvement of the above technical solution, a bucket cover is rotationally arranged on the rear end of the top of the barrel body, and the bucket cover is opened and closed by infrared induction.

[0018] The application also provides a garbage bag laying method based on the automatic medical waste garbage can.

[0019] Step one: the garbage bag in the garbage can is sealed by the heat sealing assembly, and after the garbage bag is taken out of the garbage can, the unused garbage bag in the box body is transported by the conveying assembly, so that the hook sleeve on the garbage bag is located on the moving track of the hook jaw end of the pulling hook.

[0020] Step two: the lifting mechanism drives the pulling hooks to move vertically and linearly upward synchronously, and the first transmission mechanism drives the pulling hooks to rotate relative to the barrel body for the first time, at this time, the pulling hooks rotate inward relative to the barrel body, so that the hook jaw end of the pulling hook is inserted into the hook sleeve of the garbage bag.

[0021] Step three: during the vertical linear movement of the pulling hook, the first transmission mechanism drives the pulling hook to rotate relative to the barrel body for the second time, at this time, the pulling hook rotates outward relative to the barrel body, so that the bag opening of the garbage bag is opened under the pulling of the pulling hooks.

[0022] Compared with the prior art, the application has the following advantages and effects:

[0023] (1) The pulling hook is vertically and linearly moved under the action of the lifting mechanism and the first transmission mechanism, and rotates during the movement, so as to automatically lay the garbage bag in the first accommodating cavity and unfold the bag opening of the garbage bag, improve the convenience and safety of laying the garbage bag in the garbage can, reduce the risk of medical waste falling out of the garbage bag after the garbage bag is taken out of the garbage can, ensure the storage effect of the garbage bag on the medical waste, and shorten the operation time of replacing the garbage bag, so as to improve the safety of medical waste recycling and facilitate subsequent medical waste treatment.

[0024] (2) The application realizes automatic replacement of the garbage bag in the garbage can through the containing effect of the box on multiple garbage bags, the conveying effect of the conveying assembly conveying the garbage bag in the box to the barrel, and the automatic laying effect of the garbage bag in the first containing cavity, thereby ensuring that the garbage can can be used for a long time while improving the convenience and safety of replacing the garbage bag in the garbage can. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of an automatic medical waste garbage can.

[0026] Figure 2 is a structural schematic view of an automatic medical waste garbage can from a second perspective and in a longitudinal direction.

[0027] Figure 3 is a structural schematic view of an automatic medical waste garbage can from a third perspective and in a longitudinal direction.

[0028] Figure 4 is a structural schematic view of an automatic medical waste garbage can from a third perspective and in a longitudinal direction.

[0029] Figure 5 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a first horizontal direction.

[0030] Figure 6 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction. Figure 5 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0031] Figure 7 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0032] Figure 8 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction. Figure 7 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0033] Figure 9 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction. Figure 2 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0034] Figure 10 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction. Figure 9 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0035] Figure 11 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0036] Figure 12 is a structural schematic view of an automatic medical waste garbage can from a first perspective and in a second horizontal direction.

[0037] Figure 13 is a structure schematic cross-sectional view of the automatic medical waste garbage can in a horizontal four view angle.

[0038] Figure 14 is a structure schematic cross-sectional view of the automatic medical waste garbage can in a horizontal five view angle.

[0039] Figure 15 is a structure schematic cross-sectional view of the automatic medical waste garbage can in a horizontal six view angle.

[0040] Figure 16 is a structure schematic cross-sectional view of the automatic medical waste garbage can in a horizontal seven view angle.

[0041] Figure 17 is a structure schematic cross-sectional view of the automatic medical waste garbage can in a horizontal view under a heat sealing state.

[0042] Among them, the barrel body 1, the first containing cavity 11, the barrel cover 12, the infrared sensor 13, the first groove 14, the second groove 15, the fan 16, the guide channel 17, the box body 2, the second containing cavity 21, the bag adding port 22, the cover 23, the bag outlet 24, the first through hole 25, the second through hole 26, the sliding hole 27, the pulling hook 3, the hook claw end 31, the lifting mechanism 4, the lifting ring 41, the pulling unit 42, the connecting seat 43, the pulling line 44, the first pulley 45, the second pulley 46, the take-up wheel 47, the first motor 48, the adjusting mechanism 49, the sliding seat 491, the roller 492, the perforation 493, the protruding block 494, the threaded groove 495, the first transmission mechanism 5, the guide rail piece 51, the drive gear 52, the first rack 53, the second rack 54, the conveying assembly 6, the first pushing module 61, the second pushing module 62, the first pushing piece 63, the horizontal section 631, the vertical section 632, the first screw 64, the second motor 65, the second pushing piece 66, the connecting part 661, the telescopic part 662, the spring 663, the protruding block 664, the second screw 67, the third motor 68, the pushing piece 69, the heat sealing assembly 7, the first rod group 71, the second rod group 72, the rotating rod 73, the storage groove 74, the fourth motor 75, the second transmission mechanism 76, the heating strip 77, the synchronous belt transmission mechanism 78, the bevel gear transmission mechanism 81, the worm gear transmission mechanism 82, the gear transmission mechanism 83, the garbage bag 9, the hook sleeve 91. DETAILED DESCRIPTION

[0043] The application will be further described in details below in conjunction with the drawings and by embodiments, and the following embodiments are an explanation of the application and the application is not limited to the following embodiments.

[0044] Reference Figures 1-17The embodiment of the application discloses an automatic medical waste garbage can, which comprises a barrel body 1 and a box body 2, a first containing cavity 11 for containing medical waste is vertically arranged on the top surface of the barrel body 1, four pull hooks 3 are slidably arranged on the side wall surface of the first containing cavity 11, each pull hook 3 is annularly arranged around the central axis of the first containing cavity 11, a lifting mechanism 4 for driving the synchronous vertical linear movement of each pull hook 3 is arranged on the barrel body 1, the lifting mechanism 4 drives the rotation of the pull hook 3 relative to the barrel body 1 through a first transmission mechanism 5, the number of the first transmission mechanism 5 is the same as that of the pull hook 3, the hook sleeve on the bag opening of the garbage bag is located on the rotation track of the hook claw end 31 of the corresponding pull hook 3, a second containing cavity 21 for containing the garbage bag is arranged in the box body 2, the box body 2 is inserted and fixed on the bottom of the barrel body 1 and is located below the first containing cavity 11, a conveying assembly 6 for conveying the garbage bag in the second containing cavity 21 to the barrel body 1 and a heat sealing assembly 7 for heat sealing the bag opening of the garbage bag are arranged on the barrel body 1.

[0045] In the embodiment, the box body 2 and the barrel body 1 can be fixed by using a buckle structure, so that the installation and dismounting of the box body 2 on the barrel body 1 are facilitated, and the convenience of use and operation is improved.

[0046] In the embodiment, a bag adding opening 22 is arranged on the side surface of the outer end of the box body 2, the bag adding opening 22 is communicated with the second containing cavity 21, a cover 23 is arranged on the bag adding opening 22, the cover 23 can be fixed on the box body 2 by using a buckle structure, so that the garbage bag in the second containing cavity 21 of the box body 2 can be supplemented, and the utilization rate of the box body 2 is ensured while the normal use of the garbage can is ensured.

[0047] Referring to Figure 1 , a barrel cover 12 is rotatably arranged on the rear end of the top of the barrel body 1, the barrel cover 12 is opened and closed by using an infrared sensing mode, that is, when the infrared sensor 13 detects that a human body approaches the barrel body 1 and needs to throw medical waste, the barrel cover 12 is rotated relative to the barrel body 1 under the driving of a driving device (such as a motor, a rudder, etc.) to remove the closure of the first containing cavity 11 by the barrel cover 12, so that the medical waste can be smoothly put into the garbage bag in the first containing cavity 11, and after the human body moves away from the barrel body 1, the barrel cover 12 is reset under the driving of the driving device, so that the first containing cavity 11 is closed again.

[0048] In the embodiment, the infrared sensor 13 is arranged on the front end of the top of the barrel body 1.

[0049] In order to be able to know the use condition of the garbage bag in the garbage can in time, a distance measuring sensor can be arranged on the can cover 12 to detect the height of the garbage in the garbage bag. When the distance between the detected garbage and the can cover 12 is less than a certain value, a voice prompt or a conventional means such as a prompt light can be used for reminding, so as to take out the garbage bag in the garbage can after sealing treatment in time.

[0050] Referring to Figures 2-4 , a plurality of first grooves 14 for accommodating the pulling hooks 3 are vertically arranged on the first accommodating cavity 11, which reduces the obstruction to the medical waste in the garbage bag caused by the pulling hooks 3 in the first accommodating cavity 11 during use of the garbage can or the damage to the garbage bag. The first grooves 14 correspond to the pulling hooks 3 one by one, and a second groove 15 for accommodating the bag opening edge of the garbage bag is arranged on the first accommodating cavity 11, so that the bag opening of the garbage bag in the first accommodating cavity 11 is in a completely open state, so that the medical waste put into the first accommodating cavity 11 can all fall into the garbage bag, reducing the risk of the medical waste directly falling into the first accommodating cavity 11 from the gap between the bag opening of the garbage bag and the barrel body 1. The second groove 15 is annular and communicates with the first groove 14, and the second groove 15 is located above the heat sealing assembly 7.

[0051] Referring to Figures 4-8 , the lifting mechanism 4 includes a lifting ring 41 and four pulling units 42. The lifting ring 41 is slidingly arranged on the barrel body 1, and the lifting ring 41 is provided with four connecting seats 43 corresponding to the pulling hooks 3 one by one. The pulling hooks 3 are rotatably arranged on the connecting seats 43. The pulling unit 42 includes a pulling line 44, a first pulley 45, a second pulley 46, and a take-up wheel 47. The pulling line 44 is sequentially wound on the first pulley 45, the second pulley 46, and the take-up wheel 47, and the two ends of the pulling line 44 are fixed on the lifting ring 41 and the take-up wheel 47, respectively. The first pulley 45 is rotatably arranged on the top of the barrel body 1. The second pulley 46 and the take-up wheel 47 are rotatably arranged on the bottom of the barrel body 1. The adjacent take-up wheels 47 are drivingly connected through bevel gear transmission mechanisms. The barrel body 1 is provided with a first motor 48 for driving any one of the take-up wheels 47 to rotate.

[0052] In use, through the driving effect of the first motor 48 and the transmission effect of the bevel gear transmission mechanism, the winding wheels 47 are synchronously rotated and the pulling lines 44 are synchronously wound or unwound, combined with the guiding effect of the first pulley 45 and the second pulley 46 on the pulling lines 44, thereby realizing the vertical linear movement of the lifting ring 41 on the barrel 1, so that the lifting ring 41 drives the pulling hook 3 to move together, combined with the transmission effect of the first transmission mechanism 5, the purpose of rotating the pulling hook 3 in the vertical linear movement is achieved, the butt joint of the pulling hook 3 and the garbage bag (i.e. the hook jaw end 31 of the pulling hook 3 is inserted into the hook sleeve of the garbage bag) is realized, thereby realizing the opening of the garbage bag opening while lifting the garbage bag opening upward.

[0053] The second pulley 46 and the winding wheel 47 are provided with an adjusting mechanism 49, the adjusting mechanism 49 includes a sliding seat 491 and a roller 492, the sliding seat 491 is slidingly arranged on the barrel 1, a through hole 493 for the pulling line 44 to pass through is formed on the top surface of the sliding seat 491, a protrusion 494 is arranged on the bottom surface of the sliding seat 491, the roller 492 is rotatably arranged on the barrel 1, two screw grooves 495 for the protrusion 494 to slide are formed on the roller 492, the two screw grooves 495 have the same pitch and opposite rotation directions, and the roller 492 and the winding wheel 47 are drivingly connected through a gear transmission mechanism.

[0054] When the winding wheel 47 rotates, the roller 492 is driven to rotate through the gear transmission mechanism, so that the sliding seat 491 is driven to move horizontally and linearly along the axial direction of the winding wheel 47 through the two screw grooves 495, the pulling line 44 is wound on the winding wheel 47 circle by circle, and the stability of the vertical movement of the lifting ring 41 is ensured.

[0055] The first transmission mechanism 5 includes a guide rail 51 and a driving gear 52, the guide rail 51 is fixed on the barrel 1 and penetrates through the connecting seat 43, the driving gear 52 is rotatably arranged on the connecting seat 43, the top and bottom of the guide rail 51 are respectively provided with a first rack 53 and a second rack 54 capable of being engaged with the driving gear 52, and the driving gear 52 is drivingly connected with the pulling hook 3 through a bevel gear transmission mechanism and a worm gear transmission mechanism in sequence.

[0056] During the vertical upward linear movement of the lifting ring 41, the driving gear 52 on the connecting seat 43 can be engaged with the second rack 54 and the first rack 53 in sequence, and the pulling hook 3 is driven to rotate relative to the barrel 1 through the bevel gear transmission mechanism and the worm gear transmission mechanism in sequence, and due to the self-locking effect of the worm gear transmission mechanism, the stability of the rotating position of the pulling hook 3 after rotating relative to the barrel 1 is ensured.

[0057] When the driving gear 52 and the second rack 54 are in contact and in the process of mutual engagement, the pulling hook 3 rotates inward relative to the barrel 1, so that the hook end 31 of the pulling hook 3 is in the same vertical line with the corresponding hook sleeve on the garbage bag (i.e. the pulling hook 3 is in a horizontal state), and then in the process of the lifting ring 41 continuing to move vertically upward, the hook end 31 is inserted into the corresponding hook sleeve, thereby driving the garbage bag to move vertically upward, and when the driving gear 52 and the first rack 53 are in contact and in the process of mutual engagement, the pulling hook 3 rotates outward relative to the barrel 1, so that the bag opening of the garbage bag is unfolded under the pulling of the pulling hook 3 until the pulling hook 3 is in a vertical state, at this time the medical waste put into the first containing cavity 11 can directly fall into the garbage bag from the unfolded bag opening of the garbage bag.

[0058] Through the setting of the first transmission mechanism 5, the pulling hook 3 is realized to rotate to unfold the bag opening of the garbage bag in the process of the lifting ring 41 vertically moving, thereby completing the setting of the garbage bag in the first containing cavity 11, so that the garbage bag can completely accommodate the medical waste put into the first containing chamber.

[0059] In order to improve the laying effect of the garbage bag in the first containing cavity 11, a method of blowing air from top to bottom to the garbage bag can be used to improve the unfolding degree of the bag body of the garbage bag, that is, the cover 23 is provided with a fan 16, air is blown into the garbage bag through the bag opening of the garbage bag by the fan 16, so that the bag body of the garbage bag can unfold horizontally and vertically downward under the wind pressure formed by the forward blowing, thereby improving the laying degree of the garbage bag in the first containing cavity 11.

[0060] Referring to Figures 9-11The conveying assembly 6 comprises a first pushing module 61 for driving the vertical linear movement of the garbage bag and a second pushing module 62 for driving the horizontal linear movement of the garbage bag. The first pushing module 61 comprises a first pushing piece 63 and a first screw rod 64. The first pushing piece 63 is in the shape of L and is slidingly arranged on the barrel 1. The first screw rod 64 is rotationally arranged on the barrel 1. A second motor 65 is mounted on the barrel 1 for driving the rotation of the first screw rod 64. The transverse section 631 of the first pushing piece 63 is threadedly sleeved on the first screw rod 64. The top surface and the bottom surface of the inner end of the box 2 are respectively provided with a bag outlet 24 and a first through hole 25 at opposite positions. The bag outlet 24 and the first through hole 25 are both in communication with the second containing cavity 21. The first through hole 25 is located on the movement track of the longitudinal section 632 of the first pushing piece 63. The bottom surface of the first containing cavity 11 is provided with a guide channel 17. The first containing cavity 11 is in communication with the bag outlet 24 through the guide channel 17. The second pushing module 62 comprises a second pushing piece 66 and a second screw rod 67. The second pushing piece 66 is of telescopic structure and is slidingly arranged on the barrel 1. The second screw rod 67 is rotationally arranged on the barrel 1. A third motor 68 is mounted on the barrel 1 for driving the rotation of the second screw rod 67. The second pushing piece 66 is threadedly sleeved on the second screw rod 67. The top surface of the outer end of the box 2 is provided with a second through hole 26. The second through hole 26 is located on the telescopic track of the second pushing piece 66. The top surface of the box 2 is provided with a sliding hole 27 along the movement direction of the second pushing piece 66. The sliding hole 27 is in communication with the second through hole 26.

[0061] In use, the first pushing piece 63 is vertically and linearly moved upward by driving the first screw rod 64 to rotate through the second motor 65. During the vertical upward movement of the first pushing piece 63, the longitudinal section 632 of the first pushing piece 63 is inserted into the second containing cavity 21 through the first through hole 25 and abuts against the garbage bag to move vertically upward together, so that the garbage bag enters the guide channel 17 through the bag outlet 24 and is vertically conveyed to the top along the guide channel 17. Then, when the pulling hook 3 is rotated and hooks the hook sleeve on the garbage bag, the first pushing piece 63 is reset under the drive of the second motor 65. Subsequently, the second pushing piece 66 is linearly moved inward horizontally by driving the second screw rod 67 to rotate through the third motor 68, so that the second pushing piece 66 pushes the garbage bag in the second containing cavity 21 to move inward until the garbage bag located at the most front end in the movement direction of the second pushing piece 66 moves to the movement track of the first pushing piece 63. Thus, after the garbage bag in the unfolded state in the first containing cavity 11 is taken out, the first pushing block can vertically convey a new garbage bag to the top along the guide channel 17 again, and the laying of the new garbage bag in the first containing cavity 11 is performed under the action of the pulling hook 3.

[0062] In the embodiment, the third motor 68 and the second screw rod 67 are connected through a gear transmission mechanism, the structure is arranged without changing the volume of the barrel 1, and the space utilization is improved.

[0063] In the embodiment, the length of the first through hole 25 is less than the length of the bag outlet 24.

[0064] The second pushing piece 66 comprises a connecting portion 661 and an extension portion 662, the connecting portion 661 is slidingly arranged on the barrel 1, the connecting portion 661 is sleeved on the second screw rod 67 in a threaded manner, the extension portion 662 is sleeved on the connecting portion 661 and a spring 663 is arranged between the extension portion 662 and the connecting portion 661, the two ends of the spring 663 abut against the extension portion 662 and the connecting portion 661 respectively, the extension portion 662 is provided with a protrusion 494 for abutting against the garbage bag, and a pushing piece 69 is slidingly arranged on the barrel 1 in a vertical direction, the outer end of the pushing piece 69 is exposed on the outer side of the barrel 1, and the inner end of the pushing piece 69 is fixed to the extension portion 662.

[0065] When the box body 2 is mounted on the barrel 1, the extension portion 662 is retracted by vertically upwardly moving the pushing piece 69, at this time, the spring 663 is in a compressed state and the extension portion 662 is removed from the interference during the insertion of the box body 2 into the barrel 1, so that the box body 2 can be completely inserted on the barrel 1, thereby improving the convenience of mounting the box body 2 on the barrel 1, and then the pushing piece 69 is removed, the extension portion 662 is extended under the action of the restoring force of the spring 663 and extends into the second accommodating cavity 21 through the second through hole 26, so that the second pushing piece 66 can push the garbage bag in the second accommodating cavity 21 and limit the box body 2 from falling off the barrel 1.

[0066] Referring to Figures 12-17 , the heat sealing assembly 7 comprises a first rod group 71 and a second rod group 72, the first rod group 71 and the second rod group 72 are arranged in a vertical direction, the first rod group 71 and the second rod group 72 each comprise two rotating rods 73, the side surface of the first accommodating cavity 11 is provided with a receiving groove 74 for accommodating the rotating rods 73, which reduces the interference of the rotating rods 73 in the first accommodating cavity 11 with the medical waste in the garbage bag or the damage of the garbage bag during use of the garbage can, the rotating rods 73 are horizontally arranged in the receiving groove 74, the barrel 1 is provided with a fourth motor 75 for driving any one of the rotating rods 73 in the second rod group 72 to rotate, the rotating rods 73 in the first rod group 71 and the second rod group 72 are arranged in an annular alternating staggered manner and are connected through a second transmission mechanism 76, the rotating directions of the rotating rods 73 in the first rod group 71 and the second rod group 72 are the same, and each rotating rod 73 in the first rod group 71 is provided with a heating strip 77.

[0067] When in use, the driving effect of the fourth motor 75 on the rotating rods 73, combined with the transmission effect of the second transmission mechanism 76 between the two adjacent rotating rods 73, realizes the approaching and moving away between the rotating rods 73 in the same rod group, so that the unfolded garbage bag in the first accommodating cavity 11 is folded under the cooperation of the rotating rods 73 in the first rod group 71 and the second rod group 72, and then the heat sealing effect of the heating strip 77 realizes the sealing of the garbage bag.

[0068] After the garbage bag is sealed, the lifting ring 41 vertically moves downward linearly by a distance through the lifting mechanism 4, so that the pulling hook 3 rotates inward by a certain angle under the action of the second transmission mechanism 76, so that the hook sleeve can be removed from the pulling hook 3, and then the pulling hook 3 rotates outward under the action of the lifting mechanism 4 and the second transmission mechanism 76 until the pulling hook 3 does not affect the removal of the garbage bag (i.e. the pulling hook 3 is in a vertical state), at this time the sealed garbage bag can be directly pulled out from the first accommodating cavity 11, and then the pulling hook 3 vertically moves downward linearly under the driving of the lifting mechanism 4 and rotates under the action of the second transmission mechanism 76 until the pulling hook 3 is reset.

[0069] The second transmission mechanism 76 includes a synchronous belt transmission mechanism 78, and both synchronous belt wheels of the synchronous belt transmission mechanism 78 are respectively connected with two adjacent rotating rods 73 through a gear transmission mechanism. Through the setting of the second transmission mechanism 76, the fourth motor 75 can drive the rotating rods 73 on the first rod group 71 and the second rod group 72 to rotate synchronously and in the same direction, thereby ensuring the effect of folding the garbage bag by the rotating rods 73 on the first rod group 71 and the second rod group 72.

[0070] In the embodiment, the second transmission mechanism 76 is arranged in an annular shape on the barrel 1 in an upper and lower alternating staggered manner.

[0071] The above described in the specification of the present application is only an example. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as it does not deviate from the content of the specification of the present application or exceed the scope defined by the claims, it shall belong to the protection scope of the present application.

Claims

1. An automatic medical waste trash can, characterized in that, The utility model relates to a medical waste disposal device, which comprises a barrel body and a box body. The barrel body is vertically provided with a first accommodating cavity on the top surface thereof for accommodating medical waste. The first accommodating cavity is provided with at least three pulling hooks on the side wall surface thereof. The barrel body is provided with a lifting mechanism for driving the pulling hooks to move vertically and linearly synchronously. The lifting mechanism drives the pulling hooks to rotate relative to the barrel body through a first transmission mechanism. The hook sleeve on the bag opening of the garbage bag is located on the rotating track of the hook claw end of the corresponding pulling hook. The box body is inserted and fixed to the bottom of the barrel body and is located below the first accommodating cavity.

2. The automatic medical waste trash can of claim 1, wherein: The barrel body is provided with a conveying assembly for conveying the garbage bag in the second accommodating cavity to the barrel body.

3. The automatic medical waste trash can of claim 2, wherein: The barrel body is provided with a heat sealing assembly for heat sealing the bag opening of the garbage bag. The lifting mechanism comprises a lifting ring and a plurality of pulling units. The lifting ring is slidably arranged on the barrel body. The lifting ring is provided with a plurality of connecting seats corresponding to the pulling hooks. The pulling hooks are rotatably arranged on the connecting seats. The number of the pulling units is the same as that of the pulling hooks. The first transmission mechanism comprises a guide rail and a drive gear. The guide rail is fixed to the barrel body and penetrates through the connecting seat. The drive gear is rotatably arranged on the connecting seat. The top and bottom of the guide rail are respectively provided with a first rack and a second rack capable of engaging with the drive gear. The drive gear is connected to the pulling hooks through a bevel gear transmission mechanism and a worm gear transmission mechanism. A plurality of first grooves for accommodating the pulling hooks are vertically arranged on the first accommodating cavity. The first grooves correspond to the pulling hooks one by one. A second groove for accommodating the bag opening edge of the garbage bag is arranged on the first accommodating cavity. The second groove is annular and communicates with the first grooves. The second groove is located above the heat sealing assembly. The pulling unit comprises a pulling line, a first pulley, a second pulley, and a take-up wheel. The pulling line is sequentially wound on the first pulley, the second pulley, and the take-up wheel, and the two ends thereof are fixed to the lifting ring and the take-up wheel, respectively. The first pulley is rotatably arranged on the top of the barrel body. The second pulley and the take-up wheel are rotatably arranged on the bottom of the barrel body. The adjacent take-up wheels are connected through a bevel gear transmission mechanism. A first motor is installed on the barrel body for driving any one of the take-up wheels to rotate. An adjusting mechanism is arranged between the second pulley and the take-up wheel. The adjusting mechanism comprises a sliding seat and a roller. The sliding seat is slidably arranged on the barrel body. The top surface of the sliding seat is provided with a through hole for the pulling line. The bottom surface of the sliding seat is provided with a protrusion. The roller is rotatably arranged on the barrel body. The roller is provided with two screw grooves for the sliding of the protrusion. The two screw grooves have the same pitch and opposite rotation directions. The roller and the take-up wheel are connected through a gear transmission mechanism.

4. The automatic medical waste trash can of claim 1, wherein: The conveying assembly comprises a first pushing module for driving the vertical linear movement of the garbage bag and a second pushing module for driving the horizontal linear movement of the garbage bag, the first pushing module comprises a first pushing piece and a first screw rod, the first pushing piece is in the shape of L and is slidingly arranged on the barrel, the first screw rod is rotationally arranged on the barrel, the barrel is provided with a second motor for driving the rotation of the first screw rod, the transverse section of the first pushing piece is threadedly sleeved on the first screw rod, the top surface and the bottom surface of the inner end of the box body are respectively provided with a bag outlet and a first through hole at opposite positions, the bag outlet and the first through hole are communicated with the second accommodating cavity, the first through hole is located on the movement track of the longitudinal section of the first pushing piece, the bottom surface of the first accommodating cavity is provided with a guide channel, the first accommodating cavity is communicated with the bag outlet through the guide channel, the second pushing module comprises a second pushing piece and a second screw rod, the second pushing piece is of a telescopic structure and is slidingly arranged on the barrel, the second screw rod is rotationally arranged on the barrel, the barrel is provided with a third motor for driving the rotation of the second screw rod, the second pushing piece is threadedly sleeved on the second screw rod, the top surface of the outer end of the box body is provided with a second through hole, the second through hole is located on the telescopic track of the second pushing piece, the top surface of the box body is provided with a sliding hole in the movement direction of the second pushing piece, and the sliding hole is communicated with the second through hole.

5. The automatic medical waste trash can of claim 4, wherein: The second pushing piece comprises a connecting portion and a telescopic portion, the connecting portion is slidingly arranged on the barrel and is threadedly sleeved on the second screw rod, the telescopic portion is sleeved on the connecting portion and is provided with a spring therebetween, the two ends of the spring are respectively abutted against the telescopic portion and the connecting portion, the telescopic portion is provided with a protruding block for abutting against the garbage bag, and the barrel is vertically slidingly provided with a pushing piece, the outer end of the pushing piece is exposed on the outer side surface of the barrel, and the inner end of the pushing piece is fixed on the telescopic portion.

6. The automatic medical waste trash can of claim 1, wherein: The heat sealing assembly comprises a first rod group and a second rod group, the first rod group and the second rod group are arranged in a top-down manner, the first rod group comprises at least two rotating rods, the second rod group comprises at least one rotating rod, the side surface of the first accommodating cavity is provided with a receiving groove for accommodating the rotating rods, the rotating rods are horizontally rotationally arranged in the receiving groove, the barrel is provided with a fourth motor for driving any one of the rotating rods in the second rod group to rotate, the rotating rods on the first rod group and the second rod group are arranged in an annular alternating staggered manner, and any one of the rotating rods in the first rod group is provided with a heating strip.

7. The automatic medical waste trash can of claim 6, wherein: The second transmission mechanism comprises a synchronous belt transmission mechanism, and the two synchronous pulleys of the synchronous belt transmission mechanism are respectively connected with the two adjacent rotating rods through the gear transmission mechanism.

8. A method of laying a bag for an automatic medical waste bin according to any one of claims 1-7, characterized in that, The method comprises the following steps: Step one: the garbage bag in the garbage can is sealed by the heat sealing assembly, and after the garbage bag is taken out from the garbage can, the unused garbage bag in the box body is conveyed by the conveying assembly, so that the hook sleeve on the garbage bag is located on the movement track of the hook claw end of the pulling hook. Step two: drive each pulling hook to move vertically and linearly upward synchronously through the lifting mechanism, and drive the pulling hook to rotate relative to the barrel for the first time through the first transmission mechanism, at this time the pulling hook rotates inward relative to the barrel, so that the hook end of the pulling hook is inserted on the hook sleeve of the garbage bag; Step three: during the vertical and linear upward movement of the pulling hook, drive the pulling hook to rotate relative to the barrel for the second time through the first transmission mechanism, at this time the pulling hook rotates outward relative to the barrel, so that the bag opening of the garbage bag is opened under the pulling of each pulling hook.

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